No connection string named ‘AnyEntities’ could be found in the application config file

You might hit this problem when you have Class Library Project in your Visual Studio Solution.

—————————————————————————————————————————-

System.InvalidOperationException was unhandled

  HResult=-2146233079

  Message=No connection string named ‘AnyEntities’ could be found in the application config file.

  Source=EntityFramework

  StackTrace:

       at System.Data.Entity.Internal.LazyInternalConnection.get_ConnectionHasModel()

       at System.Data.Entity.Internal.LazyInternalContext.InitializeContext()

       at System.Data.Entity.Internal.InternalContext.Initialize()

       at System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType)

       at System.Data.Entity.Internal.Linq.InternalSet`1.Initialize()

       at System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext()

       at System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider()

       at System.Linq.Queryable.Select[TSource,TResult](IQueryable`1 source, Expression`1 selector)

       at WindowsFormsMVC.Program.Main() in c:\VCsharpTemp\VS2013\WindowsFormsMVC\WindowsFormsMVC\Program.cs:line 26

       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException:

 

 

You might have checked the app.config inside your Class Library Project and the connection string is in fact there. Somehow that is not going to work.

 

You must move that connection string to the startup project. Now try again.

 

The connection string is something like this.

<connectionStrings>

    <addname=AccEntitiesconnectionString=metadata=res://*/AccModel.csdl|res://*/AccModel.ssdl|res://*/AccModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=.\SQLEXPRESS;initial catalog=Accounting;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework&quot;providerName=System.Data.EntityClient/>

</connectionStrings>

Advertisements

About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress (http://www.pcworld.com/article/206455/Microsoft_Live_Spaces_Moves_to_WordPress_An_FAQ.html) till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
This entry was posted in .Net and tagged , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s