Hello,

I am installing (not upgrading) DotNetNuke version 4.5.5 on my computer

I followed everything stated in this article http://www.mitchelsellers.com/Blogs/tabid/54/articleType/ArticleView/articleId/119/Installing-DotNetNuke-455-Locally.aspx

But now I have an error that I don't know how to handle, and it's kinda annoying me so I need a little help here.

What should I do to manage it?

Note that I followed every single step in the article, and my connection string is the following "server=localhost\\SQLEXPRESS;Trusted_connection=true;database=*****;"

Server Error in '/DotNetNuke455' Application.

---

Instance failure.

Line 80: 
Line 81:             'Determine the Upgrade status and redirect to Install.aspx
Line 82:             Select Case GetUpgradeStatus()
Line 83:                 Case Globals.UpgradeStatus.Install
Line 84:                     If AutoUpgrade Then

[InvalidOperationException: Instance failure.]
   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +437
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
   System.Data.SqlClient.SqlConnection.Open() +111
   DotNetNuke.Data.SqlDataProvider.ExecuteADOScript(String SQL) +69
   DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) +780
   DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script) +6
   DotNetNuke.Data.SqlDataProvider.GetProviderPath() +191
   DotNetNuke.Common.Globals.GetUpgradeStatus() +78
   DotNetNuke.Common.Global.CheckVersion() in c:\inetpub\wwwroot\DotNetNuke455\App_Code\Global.asax.vb:82
   DotNetNuke.Common.Global.Application_Start(Object Sender, EventArgs E) in c:\inetpub\wwwroot\DotNetNuke455\App_Code\Global.asax.vb:313

No it doesn't work, I tried the following connection strings and it's not working

"server=localhost\\SQLEXPRESS;Trusted_connection=true;database=*****;"

"server=localhost\SQLEXPRESS;Trusted_connection=true;database=*****;"

"server=.\SQLEXPRESS;Trusted_connection=true;database=*****;"

I have exactly the same problem.

I use a SQL Server specific account.

My ConnectionStringSection (it is in a single line) :

************

    <connectionStrings>

          <add name="DotNetNuke" connectionString="Data Source=MyServer\SQLEXPRESS;database=dotnetnuke;uid=dnn;pwd=******"             providerName="System.Data.SqlClient"/>

    </connectionStrings>

************

The entry in the AppSettings Section (in a single line):

***********

    <add key="DotNetNuke" value="Data Source=MyServer\SQLEXPRESS;database=dotnetnuke;uid=dnn;pwd=******" />

***********

I used the VB StarterKit (C# templates simply does not show) to generate a Project inside my MyDocuments folder.