I upgraded DNN 5.5.1 to 5.6 first on localhost and everything workded fine. Now I made the same on the live server and nothing seems to work. 


First, when I upgrade I get the following errors:


Upgrading DotNetNuke


Current Assembly Version: 05.06.00


Current Database Version: 05.05.01


Upgrade Status Report


00:00:00.075 - Upgrading to Version: 05.06.00
00:00:00.291 -   Executing Script: 05.06.00.SqlDataProvider Success
00:00:01.622 -   Executing Application Upgrades: 05.06.00 Success
00:00:02.450 -   Cleaning Up Files: 05.06.00 Success
00:00:02.451 -   Updating Config Files: 05.06.00 Success
00:00:02.454 - Performing General Upgrades
00:00:02.497 - Installing Optional Modules:
00:00:02.500 -   Installing Package File HTML_Community_05.06.00_Install:  Success
00:00:02.800 -   Installing Package File Messaging_05.06.00_Install:  Success
00:00:02.883 -   Installing Package File Taxonomy_05.06.00_Install:  Success
00:00:02.982 -   Installing Package File Telerik_05.06.00_Install:  Error!
00:00:03.564 - Installing Optional Skins:
00:00:03.564 - Installing Optional Containers:
00:00:03.564 - Installing Optional Languages:
00:00:03.565 - Installing Optional Providers:
00:00:03.565 -   Installing Package File AspNetMembershipProvider_05.06.00_Install:  Success
00:00:03.630 -   Installing Package File CorePermissionProvider_05.06.00_Install:  Success
00:00:03.685 -   Installing Package File CoreSitemapProvider_5.6.0.0_Install:  Error!
00:00:03.709 -   Installing Package File DatabaseLoggingProvider_05.06.00_Install:  Success
00:00:03.754 -   Installing Package File DNNMembershipProvider_05.06.00_Install:  Success
00:00:03.878 -   Installing Package File DNNMenuNavigationProvider_05.06.00_Install:  Success
00:00:04.324 -   Installing Package File DNNTreeNavigationProvider_05.06.00_Install:  Success
00:00:04.372 -   Installing Package File FckHtmlEditorProvider_02.00.04_Install:  Success
00:00:06.013 -   Installing Package File FileBasedCachingProvider_05.06.00_Install:  Success
00:00:06.073 -   Installing Package File FileModuleCachingProvider_05.06.00_Install:  Success
00:00:06.131 -   Installing Package File MemoryModuleCachingProvider_05.06.00_Install:  Success
00:00:06.177 -   Installing Package File SchedulingProvider_05.06.00_Install:  Success
00:00:06.235 -   Installing Package File SearchIndexProvider_05.06.00_Install:  Success
00:00:06.290 -   Installing Package File SearchProvider_05.06.00_Install:  Success
00:00:06.319 -   Installing Package File SolpartMenuNavigationProvider_05.01.00_Install:  Success
00:00:06.398 -   Installing Package File TelerikEditorProvider_05.06.00_Install:  Error!
00:00:06.729 - Installing Optional AuthSystems:
00:00:06.729 -   Installing Package File LiveID_01.00.01_Install:  Success
00:00:06.980 -   Installing Package File OpenID_02.00.00_Install:  Success
00:00:07.064 - Installing Optional Packages:
Upgrade Complete


Click Here To Access Your Portal

When I access my site I get "error occured page". This is due to wrong telerik version (new version is not included in the 5.6 upgrade package) So I downloaded the 5.6 Install version, uploaded telerik.web.ui to the server and updated the following line from web.config

<bindingRedirect oldVersion="2008.0.0.0-2020.0.0.0" newVersion="2010.02.0713.35" />
to
<bindingRedirect oldVersion="2008.0.0.0-2020.0.0.0" newVersion="2010.02.0929.35" />


This brings the site back to life but the navigation is gone and also some links won't work anymore. For example logout button in the breadcrumbs, update button in the module configuration page, tab control in the ribbon admin, etc. 

only exception I see in the event log is:

UpgradeNet: Upgrade to .NET 4.0 failed. Error reported during attempt to update:Error: Object reference not set to an instance of an object. at DotNetNuke.Services.Installer.XmlMerge.UpdateAttribute(XmlNode rootNode, XmlNode actionNode) at DotNetNuke.Services.Installer.XmlMerge.ProcessNode(XmlNode node) at DotNetNuke.Services.Installer.XmlMerge.ProcessNodes(XmlNodeList nodes, Boolean saveConfig) at DotNetNuke.Services.Installer.XmlMerge.UpdateConfigs() at DotNetNuke.Services.Upgrade.Upgrade.UpdateConfig(String strConfigFile, Version version, String strReason) 

Here's my web.config:

<configuration>
  <!-- register local configuration handlers -->
  <configSections>
    <sectionGroup name="dotnetnuke">
      <!-- the requirePermission attribute will cause a syntax warning - please ignore - it is required for Medium Trust support-->
      <section name="data" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="logging" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="scheduling" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="htmlEditor" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="navigationControl" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="searchIndex" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="searchDataStore" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="friendlyUrl" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="caching" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="authentication" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="members" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="roles" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="profiles" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="permissions" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="moduleCaching" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="outputCaching" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
      <section name="sitemap" requirePermission="false" type="DotNetNuke.Framework.Providers.ProviderConfigurationHandler, DotNetNuke" />
    </sectionGroup>
  </configSections>
  <connectionStrings>
    <!-- Connection String for SQL Server 2005/2008 Express -->
    <add name="SiteSqlServer" connectionString="Data Source=...
    <!-- Connection String for SQL Server 2005/2008
    <add name="SiteSqlServer" connectionString="Server=(local);Database=DotNetNuke;uid=;pwd=;" providerName="System.Data.SqlClient" /> 
    -->
  </connectionStrings>
  <appSettings>
    <!-- Connection String for SQL Server 2005/2008 Express - kept for backwards compatability - legacy modules   -->
    <add key="SiteSqlServer" value="Data Source=...
    <!-- Connection String for SQL Server 2005/2008 - kept for backwards compatability - legacy modules
    <add key="SiteSqlServer" value="Server=(local);Database=DotNetNuke;uid=;pwd=;"/>
    -->
    <add key="InstallTemplate" value="DotNetNuke.install.config" />
    <add key="AutoUpgrade" value="false" />
    <add key="UseInstallWizard" value="true" />
    <add key="InstallMemberRole" value="true" />
    <add key="ShowMissingKeys" value="false" />
    <add key="EnableWebFarmSupport" value="false" />
    <add key="EnableCachePersistence" value="false" />
    <add key="HostHeader" value="" />
    <!-- Host Header to remove from URL so "www.mydomain.com/johndoe/Default.aspx" is treated as "www.mydomain.com/Default.aspx" -->
    <add key="RemoveAngleBrackets" value="false" />
    <!--optionally strip angle brackets on public login and registration screens-->
    <add key="PersistentCookieTimeout" value="0" />
    <!--use as persistent cookie expiration. Value is in minutes, and only active if a non-zero figure-->
    <!-- set UsePortNumber to true to preserve the port number if you're using a port number other than 80 (the standard)
    <add key="UsePortNumber" value="true" /> -->
    <add key="InstallationDate" value="5/27/2010" />
  </appSettings>
  <!-- The system.webServer section is required for IIS7 compatability It is ignored by IIS6-->
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <modules>
        <add name="Compression" type="DotNetNuke.HttpModules.Compression.CompressionModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="RequestFilter" type="DotNetNuke.HttpModules.RequestFilter.RequestFilterModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="UrlRewrite" type="DotNetNuke.HttpModules.UrlRewriteModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="Exception" type="DotNetNuke.HttpModules.Exceptions.ExceptionModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="UsersOnline" type="DotNetNuke.HttpModules.UsersOnline.UsersOnlineModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="DNNMembership" type="DotNetNuke.HttpModules.Membership.MembershipModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="Personalization" type="DotNetNuke.HttpModules.Personalization.PersonalizationModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="Analytics" type="DotNetNuke.HttpModules.Analytics.AnalyticsModule, DotNetNuke.HttpModules" preCondition="managedHandler" />
        <add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule, Telerik.Web.UI" preCondition="managedHandler" />
      </modules>
      <handlers>
        <add name="LogoffHandler*" path="Logoff.aspx" verb="*" type="DotNetNuke.Services.Authentication.LogOffHandler, DotNetNuke" preCondition="integratedMode,runtimeVersionv4.0" />
        <add name="RSSHandler" path="RSS.aspx" verb="*" type="DotNetNuke.Services.Syndication.RssHandler, DotNetNuke" preCondition="integratedMode,runtimeVersionv4.0" />
        <add name="LinkClickHandler" path="LinkClick.aspx" verb="*" type="DotNetNuke.Services.FileSystem.FileServerHandler, DotNetNuke" preCondition="integratedMode,runtimeVersionv4.0" />
        <add name="CaptchaHandler" path="*.captcha.aspx" verb="*" type="DotNetNuke.UI.WebControls.CaptchaHandler, DotNetNuke" preCondition="integratedMode,runtimeVersionv4.0" />
        <add name="UserProfilePageHandler" verb="*" path="User.aspx" type="DotNetNuke.Services.UserProfile.UserProfilePageHandler, DotNetNuke" preCondition="integratedMode,runtimeVersionv4.0" />
        <add name="SitemapHandler" path="Sitemap.aspx" verb="*" type="DotNetNuke.Services.Sitemap.SitemapHandler, DotNetNuke" preCondition="integratedMode,runtimeVersionv4.0" />
        <add name="RadProgressHandler" verb="*" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.Upload.RadUploadProgressHandler, Telerik.Web.UI" preCondition="integratedMode" />
        <add name="Telerik.Web.UI.WebResource" verb="*" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" />
        <add name="Telerik.Web.UI.ChartHttpHandler" verb="*" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" />
        <add name="HtmTemplateFileHandler" verb="*" path="*.htmtemplate" type="DotNetNuke.HtmlEditor.TelerikEditorProvider.HtmTemplateFileHandler, DotNetNuke.HtmlEditor.TelerikEditorProvider" preCondition="integratedMode" />
      </handlers>
      <validation validateIntegratedModeConfiguration="false" />
    </system.webServer>
  </location>
  <location path="." inheritInChildApplications="false">
    <system.web>
      <machineKey validationKey="CE9CDFE114559326F57F3FE0E0D5DA67C612C9CE" decryptionKey="C1659EEC175E128497DFB72021AD2A7A42111B98D126775C" decryption="3DES" validation="SHA1" />
      <!-- HttpModules for Common Functionality -->
      <httpModules>
        <!-- add name="Authentication" type="DotNetNuke.HttpModules.AuthenticationModule, DotNetNuke.HttpModules.Authentication" / -->
        <add name="Compression" type="DotNetNuke.HttpModules.Compression.CompressionModule, DotNetNuke.HttpModules" />
        <add name="RequestFilter" type="DotNetNuke.HttpModules.RequestFilter.RequestFilterModule, DotNetNuke.HttpModules" />
        <add name="UrlRewrite" type="DotNetNuke.HttpModules.UrlRewriteModule, DotNetNuke.HttpModules" />
        <add name="Exception" type="DotNetNuke.HttpModules.Exceptions.ExceptionModule, DotNetNuke.HttpModules" />
        <add name="UsersOnline" type="DotNetNuke.HttpModules.UsersOnline.UsersOnlineModule, DotNetNuke.HttpModules" />
        <add name="DNNMembership" type="DotNetNuke.HttpModules.Membership.MembershipModule, DotNetNuke.HttpModules" />
        <add name="Personalization" type="DotNetNuke.HttpModules.Personalization.PersonalizationModule, DotNetNuke.HttpModules" />
        <add name="Analytics" type="DotNetNuke.HttpModules.Analytics.AnalyticsModule, DotNetNuke.HttpModules" />
        <add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule, Telerik.Web.UI" />
      </httpModules>
      <httpHandlers>
        <!-- This is for CAPTCHA support -->
        <add verb="*" path="*.captcha.aspx" type="DotNetNuke.UI.WebControls.CaptchaHandler, DotNetNuke" />
        <!-- This is for Serving files, secure, insecure, from database -->
        <add verb="*" path="LinkClick.aspx" type="DotNetNuke.Services.FileSystem.FileServerHandler, DotNetNuke" />
        <!-- This adds syndication support -->
        <add verb="*" path="RSS.aspx" type="DotNetNuke.Services.Syndication.RssHandler, DotNetNuke" />
        <!-- This adds legacy support for the Logoff page -->
        <add verb="*" path="Logoff.aspx" type="DotNetNuke.Services.Authentication.LogOffHandler, DotNetNuke" />
        <!-- ASP.NET AJAX support -->
        <add verb="*" path="User.aspx" type="DotNetNuke.Services.UserProfile.UserProfilePageHandler, DotNetNuke" />
        <add verb="*" path="Sitemap.aspx" type="DotNetNuke.Services.Sitemap.SitemapHandler, DotNetNuke" />
        <add verb="*" path="*.htmtemplate" type="DotNetNuke.HtmlEditor.TelerikEditorProvider.HtmTemplateFileHandler, DotNetNuke.HtmlEditor.TelerikEditorProvider" />
        <add verb="*" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.Upload.RadUploadProgressHandler, Telerik.Web.UI" />
        <add verb="*" path="Telerik.Web.UI.WebResource.axd" validate="false" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" />
        <add verb="*" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="true" />
        <add verb="*" path="*.htmtemplate" type="DotNetNuke.HtmlEditor.TelerikEditorProvider.HtmTemplateFileHandler, DotNetNuke.HtmlEditor.TelerikEditorProvider" />
      </httpHandlers>
      <!-- set code access security trust level - this is generally set in the machine.config
    <trust level="Medium" originUrl=".*" />
    -->
      <!-- set debugmode to false for running application -->
      <compilation debug="false" strict="false" targetFramework="4.0">
        <buildProviders>
          <remove extension=".resx" />
          <remove extension=".resources" />
        </buildProviders>
        <assemblies>
          <add assembly="Microsoft.VisualBasic, Version=10.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
          <add assembly="System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
          <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
          <add assembly="System.Management, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
          <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
          <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        </assemblies>
        <!-- register your app_code subfolders to generate granular assemblies during compilation
      <codeSubDirectories> 
        <add directoryName="sub-directory name"/> 
      </codeSubDirectories>
      -->
      </compilation>
      <!-- permits errors to be displayed for remote clients -->
      <!-- Forms or Windows authentication -->
      <authentication mode="Forms">
        <forms name=".DOTNETNUKE" protection="All" timeout="60" cookieless="UseCookies" />
      </authentication>
      <!--
    <identity impersonate="true"/>
    <authentication mode="Windows">
    </authentication>
    -->
      <!-- allow large file uploads -->
      <httpRuntime useFullyQualifiedRedirectUrl="true" maxRequestLength="8192" requestLengthDiskThreshold="8192" requestValidationMode="2.0" />
      <httpCookies httpOnlyCookies="true" requireSSL="false" domain="" />
      <!--  GLOBALIZATION
    This section sets the globalization settings of the application. 
    Utf-8 is not supported on Netscape 4.x 
    If you need netscape compatiblity leave iso-8859-1.
    UTF-8 is recommended for complex languages
    -->
      <globalization culture="en-US" uiCulture="en" requestEncoding="UTF-8" responseEncoding="UTF-8" fileEncoding="UTF-8" />
      <!--<globalization culture="en-US" uiCulture="en"  fileEncoding="iso-8859-1" requestEncoding="iso-8859-1" responseEncoding="iso-8859-1"/>-->
      <!-- page level options -->
      <pages validateRequest="false" enableViewStateMac="true" enableEventValidation="false" controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
        <namespaces>
          <add namespace="System.ComponentModel" />
          <add namespace="System.Data" />
          <add namespace="System.Data.SqlClient" />
          <add namespace="System.Drawing" />
          <add namespace="Microsoft.VisualBasic" />
          <add namespace="System.Globalization" />
          <add namespace="DotNetNuke.Services.Localization" />
          <add namespace="DotNetNuke.Entities.Users" />
          <add namespace="DotNetNuke" />
          <add namespace="DotNetNuke.Common" />
          <add namespace="DotNetNuke.Data" />
          <add namespace="DotNetNuke.Framework" />
          <add namespace="DotNetNuke.Modules" />
          <add namespace="DotNetNuke.Security" />
          <add namespace="DotNetNuke.Services" />
          <add namespace="DotNetNuke.UI" />
          <add namespace="DotNetNuke.Entities.Portals" />
          <add namespace="DotNetNuke.Common.Utilities" />
          <add namespace="DotNetNuke.Services.Exceptions" />
          <add namespace="DotNetNuke.Entities.Tabs" />
        </namespaces>
      </pages>
      <!-- ASP.NET 2 Membership/Profile/Role and AnonymousAuthentication Providers -->
      <!-- anonymousIdentification configuration:
          enabled="[true|false]"                              Feature is enabled?
          cookieName=".ASPXANONYMOUS"                         Cookie Name
          cookieTimeout="100000"                              Cookie Timeout in minutes
          cookiePath="/"                                      Cookie Path
          cookieRequireSSL="[true|false]"                     Set Secure bit in Cookie
          cookieSlidingExpiration="[true|false]"              Reissue expiring cookies?
          cookieProtection="[None|Validation|Encryption|All]" How to protect cookies from being read/tampered
          domain="[domain]"                                   Enables output of the "domain" cookie attribute set to the specified value
        -->
      <anonymousIdentification enabled="true" cookieName=".ASPXANONYMOUS" cookieTimeout="100000" cookiePath="/" cookieRequireSSL="false" cookieSlidingExpiration="true" cookieProtection="None" domain="" />
      <membership defaultProvider="AspNetSqlMembershipProvider" userIsOnlineTimeWindow="15">
        <providers>
          <clear />
          <!-- Configuration for AspNetSqlMembershipProvider:
                connectionStringName="string"               Name corresponding to the entry in <connectionStrings> section where the connection string for the provider is specified
                maxInvalidPasswordAttempts="int"            The number of failed password attempts, or failed password answer attempts that are allowed before locking out a user?s account
                passwordAttemptWindow="int"                 The time window, in minutes, during which failed password attempts and failed password answer attempts are tracked
                enablePasswordRetrieval="[true|false]"      Should the provider support password retrievals
                enablePasswordReset="[true|false]"          Should the provider support password resets
                requiresQuestionAndAnswer="[true|false]"    Should the provider require Q & A
                minRequiredPasswordLength="int"        The minimum password length
                minRequiredNonalphanumericCharacters="int"  The minimum number of non-alphanumeric characters
                applicationName="string"                    Optional string to identity the application: defaults to Application Metabase path
                requiresUniqueEmail="[true|false]"          Should the provider require a unique email to be specified
                passwordFormat="[Clear|Hashed|Encrypted]"   Storage format for the password: Hashed (SHA1), Clear or Encrypted (Triple-DES)
                description="string"                        Description of what the provider does
                -->
          <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="SiteSqlServer" enablePasswordRetrieval="true" enablePasswordReset="true" requiresQuestionAndAnswer="false" minRequiredPasswordLength="7" minRequiredNonalphanumericCharacters="0" requiresUniqueEmail="false" passwordFormat="Encrypted" applicationName="DotNetNuke" description="Stores and retrieves membership data from the local Microsoft SQL Server database" />
        </providers>
      </membership>
      <!--Upgraded by Core Upgrade version 5.5.1 - Date: 11/4/2010 8:43:17 PM-->
      <!--<customErrors mode="RemoteOnly" />-->
      <customErrors mode="RemoteOnly" redirectMode="ResponseRewrite" defaultRedirect="~/errorpage.aspx" />
    </system.web>
  </location>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <probing privatePath="bin;bin\HttpModules;bin\Providers;bin\Modules;bin\Support;" />
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35" />
        <!--Upgraded by .NET 4.0 Upgrade version 5.5.1 - Date: 11/4/2010 8:50:38 PM-->
        <!--<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" xmlns="urn:schemas-microsoft-com:asm.v1" />-->
        <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35" />
        <!--Upgraded by .NET 4.0 Upgrade version 5.5.1 - Date: 11/4/2010 8:50:38 PM-->
        <!--<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" xmlns="urn:schemas-microsoft-com:asm.v1" />-->
        <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Telerik.Web.UI" publicKeyToken="121fae78165ba3d4" />
        <!--Upgraded by DotNetNuke.Telerik.Web version 5.4.0 - Date: 5/27/2010 6:35:49 AM-->
        <!--<bindingRedirect oldVersion="2008.0.0.0-2020.0.0.0" newVersion="2010.01.309.35" xmlns="urn:schemas-microsoft-com:asm.v1" />-->
        <!--Upgraded by DotNetNuke.Telerik.Web version 5.5.0 - Date: 11/4/2010 8:43:26 PM-->
        <!--<bindingRedirect oldVersion="2008.0.0.0-2020.0.0.0" newVersion="2010.01.309.35" xmlns="urn:schemas-microsoft-com:asm.v1" />-->
        <bindingRedirect oldVersion="2008.0.0.0-2020.0.0.0" newVersion="2010.02.0929.35" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <dotnetnuke>
    <htmlEditor defaultProvider="TelerikEditorProvider">
      <providers>
        <clear />
        <add name="FckHtmlEditorProvider" type="DotNetNuke.HtmlEditor.FckHtmlEditorProvider.FckHtmlEditorProvider, DotNetNuke.FckHtmlEditorProvider" providerPath="~/Providers/HtmlEditorProviders/Fck/" CustomConfigurationPath="~/Providers/HtmlEditorProviders/Fck/custom/FCKConfig.js" EnhancedSecurityDefault="false" SecureConfigurationPath="~/Providers/HtmlEditorProviders/Fck/custom/FCKConfigSecure.js" ImageGalleryPath="~/Providers/HtmlEditorProviders/Fck/fckimagegallery.aspx" ImageUploadPath="~/Providers/HtmlEditorProviders/Fck/fckimagegallery.aspx" ImageAllowedFileTypes="gif,png,bmp,jpg" FlashGalleryPath="~/Providers/HtmlEditorProviders/Fck/fckimagegallery.aspx" FlashUploadPath="~/Providers/HtmlEditorProviders/Fck/fckimagegallery.aspx" FlashAllowedFileTypes="fla,swf" LinksGalleryPath="~/Providers/HtmlEditorProviders/Fck/fcklinkgallery.aspx" DynamicStylesGeneratorPath="~/Providers/HtmlEditorProviders/Fck/FCKStyles.aspx" DynamicStylesCaseSensitive="true" DynamicStylesGeneratorFilter="controlpanel|filemanager|mainmenu|wizard" StaticStylesFile="~/Providers/HtmlEditorProviders/Fck/FCKeditor/fckstyles.xml" StylesDefaultMode="Static" DynamicCSSGeneratorPath="~/Providers/HtmlEditorProviders/Fck/FCKCSS.aspx" StaticCSSFile="~/Providers/HtmlEditorProviders/Fck/FCKeditor/editor/css/fck_editorarea.css" CSSDefaultMode="static" spellCheck="ieSpell" AvailableToolbarSkins="Office2003,Silver" DefaultToolbarSkin="Office2003" AvailableToolBarSets="DNNDefault,Default,NoGallery,Basic" DefaultToolbarSet="DNNDefault" DefaultImageGallerySkin="Default" DefaultFlashGallerySkin="Default" DefaultLinksGallerySkin="Default" FCKDebugMode="false" UseFCKSource="false" OptionsOpenMode="ShowModalDialog" CustomOptionsDialog="Admin" />
        <!--Upgraded by DotNetNuke.TelerikEditorProvider version 5.4.2 - Date: 5/27/2010 6:35:57 AM-->
        <!--<add name="TelerikEditorProvider" type="DotNetNuke.HtmlEditor.TelerikEditorProvider.EditorProvider, DotNetNuke.HtmlEditor.TelerikEditorProvider" providerPath="~/Providers/HtmlEditorProviders/Telerik/" toolsFile="~/Providers/HtmlEditorProviders/Telerik/Config/ToolsDefault.xml" configFile="~/Providers/HtmlEditorProviders/Telerik/Config/ConfigDefault.xml" FilterHostExtensions="True" />-->
        <!--Upgraded by DotNetNuke.TelerikEditorProvider version 5.4.2 - Date: 11/4/2010 8:44:14 PM-->
        <!--<add name="TelerikEditorProvider" type="DotNetNuke.HtmlEditor.TelerikEditorProvider.EditorProvider, DotNetNuke.HtmlEditor.TelerikEditorProvider" providerPath="~/Providers/HtmlEditorProviders/Telerik/" toolsFile="~/Providers/HtmlEditorProviders/Telerik/Config/ToolsDefault.xml" configFile="~/Providers/HtmlEditorProviders/Telerik/Config/ConfigDefault.xml" FilterHostExtensions="True" />-->
        <add name="TelerikEditorProvider" type="DotNetNuke.HtmlEditor.TelerikEditorProvider.EditorProvider, DotNetNuke.HtmlEditor.TelerikEditorProvider" providerPath="~/Providers/HtmlEditorProviders/Telerik/" toolsFile="~/Providers/HtmlEditorProviders/Telerik/Config/ToolsDefault.xml" configFile="~/Providers/HtmlEditorProviders/Telerik/Config/ConfigDefault.xml" FilterHostExtensions="True" />
      </providers>
    </htmlEditor>
    <navigationControl defaultProvider="ASP2MenuNavigationProvider">
      <providers>
        <clear />
        <add name="DNNDropDownNavigationProvider" type="DotNetNuke.NavigationControl.DNNDropDownNavigationProvider, DotNetNuke.DNNDropDownNavigationProvider" providerPath="~\Providers\NavigationProviders\DNNDropDownNavigationProvider\" />
        <add name="ASP2MenuNavigationProvider" type="DotNetNuke.NavigationControl.ASP2MenuNavigationProvider, DotNetNuke.ASP2MenuNavigationProvider" providerPath="~\Providers\NavigationProviders\ASP2MenuNavigationProvider\" />
        <add name="DNNMenuNavigationProvider" type="DotNetNuke.NavigationControl.DNNMenuNavigationProvider, DotNetNuke.DNNMenuNavigationProvider" providerPath="~\Providers\NavigationProviders\DNNMenuNavigationProvider\" />
        <add name="DNNTreeNavigationProvider" type="DotNetNuke.NavigationControl.DNNTreeNavigationProvider, DotNetNuke.DNNTreeNavigationProvider" providerPath="~\Providers\NavigationProviders\DNNTreeNavigationProvider\" />
        <add name="SolpartMenuNavigationProvider" type="DotNetNuke.NavigationControl.SolpartMenuNavigationProvider, DotNetNuke.SolpartMenuNavigationProvider" providerPath="~\Providers\NavigationProviders\SolpartMenuNavigationProvider\" />
      </providers>
    </navigationControl>
    <searchIndex defaultProvider="ModuleIndexProvider">
      <providers>
        <clear />
        <add name="ModuleIndexProvider" type="DotNetNuke.Services.Search.ModuleIndexer, DotNetNuke.Search.Index" providerPath="~\Providers\SearchProviders\ModuleIndexer\" />
      </providers>
    </searchIndex>
    <searchDataStore defaultProvider="SearchDataStoreProvider">
      <providers>
        <clear />
        <add name="SearchDataStoreProvider" type="DotNetNuke.Services.Search.SearchDataStore, DotNetNuke.Search.DataStore" providerPath="~\Providers\SearchProviders\SearchDataStore\" />
      </providers>
    </searchDataStore>
    <data defaultProvider="SqlDataProvider">
      <providers>
        <clear />
        <add name="SqlDataProvider" type="DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider" connectionStringName="SiteSqlServer" upgradeConnectionString="" providerPath="~\Providers\DataProviders\SqlDataProvider\" objectQualifier="tkdnn_" databaseOwner="dbo" />
      </providers>
    </data>
    <logging defaultProvider="DBLoggingProvider">
      <providers>
        <clear />
        <add name="DBLoggingProvider" type="DotNetNuke.Services.Log.EventLog.DBLoggingProvider.DBLoggingProvider, DotNetNuke.Provider.DBLoggingProvider" providerPath="~\Providers\LoggingProviders\DBLoggingProvider\" />
      </providers>
    </logging>
    <scheduling defaultProvider="DNNScheduler">
      <providers>
        <clear />
        <add name="DNNScheduler" type="DotNetNuke.Services.Scheduling.DNNScheduling.DNNScheduler, DotNetNuke.DNNScheduler" providerPath="~\Providers\SchedulingProviders\DNNScheduler\" debug="false" maxThreads="1" />
      </providers>
    </scheduling>
    <friendlyUrl defaultProvider="DNNFriendlyUrl">
      <providers>
        <clear />
        <add name="DNNFriendlyUrl" type="DotNetNuke.Services.Url.FriendlyUrl.DNNFriendlyUrlProvider, DotNetNuke.HttpModules" includePageName="true" regexMatch="[^a-zA-Z0-9 _-]" urlFormat="humanfriendly" />
      </providers>
    </friendlyUrl>
    <caching defaultProvider="FileBasedCachingProvider">
      <providers>
        <clear />
        <add name="FileBasedCachingProvider" type="DotNetNuke.Services.Cache.FileBasedCachingProvider.FBCachingProvider, DotNetNuke.Caching.FileBasedCachingProvider" providerPath="~\Providers\CachingProviders\FileBasedCachingProvider\" />
      </providers>
    </caching>
    <authentication defaultProvider="ADSIAuthenticationProvider">
      <providers>
        <clear />
        <add name="ADSIAuthenticationProvider" type="DotNetNuke.Authentication.ActiveDirectory.ADSI.ADSIProvider, DotNetNuke.Authentication.ActiveDirectory" providerPath="~\Providers\AuthenticationProviders\ADSIProvider\" />
      </providers>
    </authentication>
    <members defaultProvider="AspNetMembershipProvider">
      <providers>
        <clear />
        <add name="AspNetMembershipProvider" type="DotNetNuke.Security.Membership.AspNetMembershipProvider, DotNetNuke.Provider.AspNetProvider" providerPath="~\Providers\MembershipProviders\AspNetMembershipProvider\" />
      </providers>
    </members>
    <roles defaultProvider="DNNRoleProvider">
      <providers>
        <clear />
        <add name="DNNRoleProvider" type="DotNetNuke.Security.Membership.DNNRoleProvider, DotNetNuke.Provider.DNNProvider" providerPath="~\Providers\MembershipProviders\DNNMembershipProvider\" />
      </providers>
    </roles>
    <profiles defaultProvider="DNNProfileProvider">
      <providers>
        <clear />
        <add name="DNNProfileProvider" type="DotNetNuke.Security.Profile.DNNProfileProvider, DotNetNuke.Provider.DNNProvider" providerPath="~\Providers\MembershipProviders\DNNProfileProvider\" />
      </providers>
    </profiles>
    <permissions defaultProvider="CorePermissionProvider">
      <providers>
        <clear />
        <add name="CorePermissionProvider" type="DotNetNuke.Security.Permissions.CorePermissionProvider, DotNetNuke.Provider.CorePermissionProvider" providerPath="~\Providers\PermissionProviders\CorePermissionProvider\" />
      </providers>
    </permissions>
    <moduleCaching defaultProvider="FileModuleCachingProvider">
      <providers>
        <clear />
        <add name="FileModuleCachingProvider" type="DotNetNuke.Services.ModuleCache.FileProvider, DotNetNuke.Provider.ModuleCaching.FileProvider" providerPath="~\Providers\ModuleCachingProviders\FileModuleCachingProvider\" />
        <add name="MemoryModuleCachingProvider" type="DotNetNuke.Services.ModuleCache.MemoryProvider, DotNetNuke.Provider.ModuleCaching.MemoryProvider" providerPath="~\Providers\ModuleCachingProviders\MemoryModuleCachingProvider\" />
      </providers>
    </moduleCaching>
    <outputCaching defaultProvider="FileOutputCachingProvider">
      <providers>
        <clear />
      </providers>
    </outputCaching>
    <sitemap defaultProvider="coreSitemapProvider">
      <providers>
        <clear />
        <add name="coreSitemapProvider" type="DotNetNuke.SitemapProviders.CoreSitemapProvider, DotNetNuke.SitemapProviders.CoreSitemapProvider" providerPath="~\Providers\MembershipProviders\Sitemap\CoreSitemapProvider\" />
      </providers>
    </sitemap>
  </dotnetnuke>
</configuration>

Please help, I've spent 2 nights fighting this now... :)

Thanks

Kalle Vänskä

full permissions granted, recycled application pool, still get the same exception:

UpgradeNet: Upgrade to .NET 4.0 failed. Error reported during attempt to update:Error: Object reference not set to an instance of an object. at DotNetNuke.Services.Installer.XmlMerge.UpdateAttribute(XmlNode rootNode, XmlNode actionNode) at DotNetNuke.Services.Installer.XmlMerge.ProcessNode(XmlNode node) at DotNetNuke.Services.Installer.XmlMerge.ProcessNodes(XmlNodeList nodes, Boolean saveConfig) at DotNetNuke.Services.Installer.XmlMerge.UpdateConfigs() at DotNetNuke.Services.Upgrade.Upgrade.UpdateConfig(String strConfigFile, Version version, String strReason) 
Server Name: ....

and whole navigation missing and links not working. no exceptions though so this is weird. 

I'm having the exact same issue.  I have 3 DNN installations, 2 of them upgraded fine, one of them has the following upgrade report:

Upgrading DotNetNuke

Current Assembly Version: 05.06.00

Current Database Version: 05.05.01

Upgrade Status Report

00:00:00.125 - Upgrading to Version: 05.06.00
00:00:00.203 -   Executing Script: 05.06.00.SqlDataProvider Success
00:00:04.750 -   Executing Application Upgrades: 05.06.00 Success
00:00:06.453 -   Cleaning Up Files: 05.06.00 Success
00:00:06.468 -   Updating Config Files: 05.06.00 Success
00:00:06.468 - Performing General Upgrades
00:00:06.609 - Installing Optional Modules:
00:00:06.625 -   Installing Package File HTML_Community_05.06.00_Install:  Success
00:00:07.156 -   Installing Package File Messaging_05.06.00_Install:  Success
00:00:07.359 -   Installing Package File Taxonomy_05.06.00_Install:  Success
00:00:07.687 -   Installing Package File Telerik_05.06.00_Install:  Error!
00:00:08.328 - Installing Optional Skins:
00:00:08.328 - Installing Optional Containers:
00:00:08.328 - Installing Optional Languages:
00:00:08.328 - Installing Optional Providers:
00:00:08.328 -   Installing Package File AspNetMembershipProvider_05.06.00_Install:  Success
00:00:08.406 -   Installing Package File CorePermissionProvider_05.06.00_Install:  Success
00:00:08.484 -   Installing Package File CoreSitemapProvider_5.6.0.0_Install:  Error!
00:00:08.547 -   Installing Package File DatabaseLoggingProvider_05.06.00_Install:  Success
00:00:08.640 -   Installing Package File DNNMembershipProvider_05.06.00_Install:  Success
00:00:08.672 -   Installing Package File DNNMenuNavigationProvider_05.06.00_Install:  Success
00:00:08.781 -   Installing Package File DNNTreeNavigationProvider_05.06.00_Install:  Success
00:00:08.953 -   Installing Package File FckHtmlEditorProvider_02.00.04_Install:  Success
00:00:11.109 -   Installing Package File FileBasedCachingProvider_05.06.00_Install:  Success
00:00:11.250 -   Installing Package File FileModuleCachingProvider_05.06.00_Install:  Success
00:00:11.328 -   Installing Package File MemoryModuleCachingProvider_05.06.00_Install:  Success
00:00:11.390 -   Installing Package File SchedulingProvider_05.06.00_Install:  Success
00:00:11.469 -   Installing Package File SearchIndexProvider_05.06.00_Install:  Success
00:00:11.578 -   Installing Package File SearchProvider_05.06.00_Install:  Success
00:00:11.625 -   Installing Package File SolpartMenuNavigationProvider_05.01.00_Install:  Success
00:00:11.703 -   Installing Package File TelerikEditorProvider_05.06.00_Install:  Error!
00:00:12.187 - Installing Optional AuthSystems:
00:00:12.187 -   Installing Package File LiveID_01.00.01_Install:  Success
00:00:12.625 -   Installing Package File OpenID_02.00.00_Install:  Success
00:00:12.797 - Installing Optional Packages:

Upgrade Complete

Any insight into what the issue is?  I have no idea how to go about troubleshooting these errors.  This DNN installation is on a server that I don't have direct access to IIS with.