I am trying to run my tests on TeamCity which is currently installed on my machine.

&gt; `System.InvalidOperationException`: 
&gt; 
&gt; The Entity Framework provider type
&gt; &#39;`System.Data.Entity.SqlServer.SqlProviderServices,
&gt; EntityFramework.SqlServer`, `Version=6.0.0.0, Culture=neutral,
&gt; PublicKeyToken=b77a5c561934e089&#39;` for the &#39;`System.Data.SqlClient`&#39;
&gt; ADO.NET provider could not be loaded. Make sure the provider assembly
&gt; is available to the running application. 
&gt; 
&gt; See http://go.microsoft.com/fwlink/?LinkId=260882 for more
&gt; information..

I have no reference to `System.Data.Entity` in any of my projects as was suggested on codeplex for upgrading to EF6.

So, I am not sure why am I getting this exception.
I do not get any such exception when I run the tests from VS.

I did try to set CopyLocal to false then again to true.. but that does not seem to work either.

Update 

My app.config has the following . Does this cause some behavior that I don&#39;t understand ?

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;configuration&gt;
      &lt;configSections&gt;
        &lt;section name=&quot;entityFramework&quot; type=&quot;System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&quot; requirePermission=&quot;false&quot; /&gt;
        &lt;!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --&gt;
      &lt;/configSections&gt;
      &lt;entityFramework&gt;
        &lt;defaultConnectionFactory type=&quot;System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework&quot; /&gt;
      &lt;/entityFramework&gt;
    &lt;/configuration&gt;


I get the following stacktrace in teamcity .


    [MSTest] IntegrationTests.CrudTest+QuestionTest.Create
    [03:59:11][IntegrationTests.CrudTest+QuestionTest.Create] Initialization method IntegrationTests.CrudTest+QuestionTest.Initialize threw exception. System.InvalidOperationException: System.InvalidOperationException: The Entity Framework provider type &#39;System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&#39; for the &#39;System.Data.SqlClient&#39; ADO.NET provider could not be loaded. Make sure the provider assembly is available to the running application. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information..
    [03:59:11]
    [IntegrationTests.CrudTest+QuestionTest.Create]     at System.Data.Entity.Config.ProviderServicesFactory.GetInstance(String providerTypeName, String providerInvariantName)
       at System.Data.Entity.Config.ProviderServicesFactory.GetInstanceByConvention(String providerInvariantName)
       at System.Data.Entity.Config.DefaultProviderServicesResolver.GetService(Type type, Object key)
       at System.Data.Entity.Config.CachingDependencyResolver.&lt;&gt;c__DisplayClass1.&lt;GetService&gt;b__0(Tuple`2 k)
       at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
       at System.Data.Entity.Config.CachingDependencyResolver.GetService(Type type, Object key)
       at System.Data.Entity.Config.ResolverChain.&lt;&gt;c__DisplayClass3.&lt;GetService&gt;b__0(IDbDependencyResolver r)
       at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
       at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)
       at System.Data.Entity.Config.ResolverChain.GetService(Type type, Object key)
       at System.Data.Entity.Config.RootDependencyResolver.GetService(Type type, Object key)
       at System.Data.Entity.Config.ResolverChain.&lt;&gt;c__DisplayClass3.&lt;GetService&gt;b__0(IDbDependencyResolver r)
       at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
       at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)
       at System.Data.Entity.Config.ResolverChain.GetService(Type type, Object key)
       at System.Data.Entity.Config.CompositeResolver`2.GetService(Type type, Object key)
       at System.Data.Entity.Config.IDbDependencyResolverExtensions.GetService[T](IDbDependencyResolver resolver, Object key)
       at System.Data.Entity.Config.InternalConfiguration.GetService[TService](Object key)
       at System.Data.Entity.Config.DbConfiguration.GetService[TService](Object key)
       at System.Data.Entity.Utilities.DbProviderFactoryExtensions.GetProviderServices(DbProviderFactory factory)
       at System.Data.Entity.Infrastructure.DefaultManifestTokenService.GetProviderManifestToken(DbConnection connection)
       at System.Data.Entity.Utilities.DbConnectionExtensions.GetProviderInfo(DbConnection connection, DbProviderManifest&amp; providerManifest)
       at System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection)
       at System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext)
       at System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input)
       at System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
       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.Internal.Linq.InternalSet`1.ActOnSet(Action action, EntityState newState, Object entity, String methodName)
       at System.Data.Entity.Internal.Linq.InternalSet`1.Add(Object entity)
       at System.Data.Entity.DbSet`1.Add(TEntity entity)
       at EFRepository.Infrastructure.EFRepository`1.Add(T item) in c:\TeamCity\buildAgent\work\da2ea4e72c0e77f0\Repository\Infrastructure\EFRepository.cs:line 22
       at IntegrationTests.CrudTest.Initialize() in c:\TeamCity\buildAgent\work\da2ea4e72c0e77f0\IntegrationTests\CrudTest.cs:line 34

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Entity Framework Provider type could not be loaded?