Hello, I am upgrading my DNN 4.5.5 to 4.6.2.  I overlayed the DNN4.6.2 over the files in my root directory.  I updated the web.config with the machine keys, connection strings, the usual things that I have to change when upgrading.  However, when I navigate to my site to start the upgrade I get the below error.  Can someone tell me what I need to do to fix this.  I don't have a clue on this one.  Thanks.

Server Error in '/' Application.
--------------------------------------------------------------------------------

Value cannot be null.
Parameter name: type
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: type

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. 

Stack Trace:

[ArgumentNullException: Value cannot be null.
Parameter name: type]
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +2768503
   DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectProviderName, String ObjectNamespace, String ObjectAssemblyName, Boolean UseCache) +582
   DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectNamespace, String ObjectAssemblyName) +17
   DotNetNuke.Security.Membership.Data.DataProvider.CreateProvider() +38
   DotNetNuke.Security.Membership.Data.DataProvider..cctor() +13

[TypeInitializationException: The type initializer for 'DotNetNuke.Security.Membership.Data.DataProvider' threw an exception.]
   DotNetNuke.Security.Membership.Data.DataProvider.Instance() +0
   DotNetNuke.Security.Membership.AspNetMembershipProvider..cctor() +5

[TypeInitializationException: The type initializer for 'DotNetNuke.Security.Membership.AspNetMembershipProvider' threw an exception.]

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) +103
   System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) +261
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +66
   DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectProviderName, String ObjectNamespace, String ObjectAssemblyName, Boolean UseCache) +582
   DotNetNuke.Security.Membership.MembershipProvider.CreateProvider() +38
   DotNetNuke.Security.Membership.MembershipProvider..cctor() +13

[TypeInitializationException: The type initializer for 'DotNetNuke.Security.Membership.MembershipProvider' threw an exception.]
   DotNetNuke.Security.Membership.MembershipProvider.Instance() +0
   DotNetNuke.Entities.Users.UserController..cctor() +5

[TypeInitializationException: The type initializer for 'DotNetNuke.Entities.Users.UserController' threw an exception.]
   DotNetNuke.Entities.Users.UserController..ctor() +0
   tt.SSL_Module.SSL_ModuleRT..ctor() +230
   tt.SSL_Module.HTTPHandler_SSL.OnBeginRequest(Object s, EventArgs e) +137
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Thanks for responding.  I do a backup of my site and database before each upgrade.  I have restored and tried to upgrade 3 times and get the same error.  It worked on my local machine but all of the pictures and icons are broken.

Your pics and icons are "broken" because of file path changes when running the site locally.

But we still don't know why you can't get it to run on a remote server.