title: Entity Framework: The provider did not return a providermanifest instance
body: <p>Entity Framework 6.0.1
  my App.config:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;configuration&gt;
    &lt;configSections&gt;
      &lt;!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --&gt;
      &lt;section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /&gt;
    &lt;/configSections&gt;
    &lt;startup&gt;
      &lt;supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0" /&gt;
    &lt;/startup&gt;
    &lt;entityFramework&gt;
      &lt;defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" /&gt;
      &lt;providers&gt;
        &lt;provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" /&gt;
      &lt;/providers&gt;
    &lt;/entityFramework&gt;
    &lt;connectionStrings&gt;
      &lt;add name="MyDataContext" connectionString="Data Source=MyDb;Initial Catalog=mycatalog;Persist Security Info=True;User ID=admin;Password=123;MultipleActiveResultSets=True"
        providerName="System.Data.SqlClient" /&gt;
    &lt;/connectionStrings&gt;
  &lt;/configuration&gt;
  </code></pre>
  
  <p>And <code>MyDataContext</code> class for using EF:</p>
  
  <pre><code>public partial class MyDataContext: DbContext
  {
     static MyDataContext()
     {
         Database.SetInitializer&lt;MyDataContext&gt;(null);
     }
  
     public MyDataContext()
         : base("MyDataContext")
     {
     }
  }
  </code></pre>
  
  <p>A context is created, but when I tried to get any entity or do anything with Database it throw exception</p>
  
  <pre><code>using (var db = new MyDataContext())
  {
      var exists = db.Database.Exists();
  }
  </code></pre>
  
  <p>exception is</p>
  
  <pre><code>System.Data.ProviderIncompatibleException: The provider did not return a providermanifest instance
  StackTrace:
     in System.Data.Common.DbProviderServices.GetProviderManifest(String manifestToken)
     in System.Data.Entity.ModelConfiguration.Utilities.DbConnectionExtensions.GetProviderInfo(DbConnection connection, DbProviderManifest&amp; providerManifest)
     in System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection)
     in System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext)
     in System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input)
     in System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
     in System.Data.Entity.Internal.InternalContext.CreateObjectContextForDdlOps()
     in System.Data.Entity.Database.Exists()
  </code></pre>
  
  <p>with inner exception:</p>
  
  <pre><code>System.Configuration.ConfigurationErrorException: Configuration system failed to initialize
  StackTrace:
     в System.Configuration.ClientConfigurationSystem.OnConfigRemoved(Object sender, InternalConfigEventArgs e)
     в System.Configuration.Internal.InternalConfigRoot.RemoveConfigImpl(String configPath, BaseConfigurationRecord configRecord)
     в System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object&amp; result, Object&amp; resultRuntimeObject)
     в System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
     в System.Configuration.ConfigurationManager.GetSection(String sectionName)
     в System.Xml.Schema.Parser..ctor(SchemaType schemaType, XmlNameTable nameTable, SchemaNames schemaNames, ValidationEventHandler eventHandler)
     в System.Xml.Schema.XmlSchema.Read(XmlReader reader, ValidationEventHandler validationEventHandler)
     в System.Data.Entity.Core.SchemaObjectModel.Schema.SomSchemaSetHelper.AddXmlSchemaToSet(XmlSchemaSet schemaSet, XmlSchemaResource schemaResource, HashSet`1 schemasAlreadyAdded)
     в System.Data.Entity.Core.SchemaObjectModel.Schema.SomSchemaSetHelper.ComputeSchemaSet(SchemaDataModelOption dataModel)
     в System.Data.Entity.Core.Common.Utils.Memoizer`2.&lt;&gt;c__DisplayClass2.&lt;Evaluate&gt;b__0()
     в System.Data.Entity.Core.Common.Utils.Memoizer`2.Result.GetValue()
     в System.Data.Entity.Core.Common.Utils.Memoizer`2.Evaluate(TArg arg)
     в System.Data.Entity.Core.SchemaObjectModel.Schema.SomSchemaSetHelper.GetSchemaSet(SchemaDataModelOption dataModel)
     в System.Data.Entity.Core.SchemaObjectModel.Schema.CreateXmlReaderSettings()
     в System.Data.Entity.Core.SchemaObjectModel.Schema.Parse(XmlReader sourceReader, String sourceLocation)
     в System.Data.Entity.Core.SchemaObjectModel.SchemaManager.ParseAndValidate(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths, SchemaDataModelOption dataModel, AttributeValueNotification providerNotification, AttributeValueNotification providerManifestTokenNotification, ProviderManifestNeeded providerManifestNeeded, IList`1&amp; schemaCollection)
     в System.Data.Entity.Core.SchemaObjectModel.SchemaManager.ParseAndValidate(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths, SchemaDataModelOption dataModel, DbProviderManifest providerManifest, IList`1&amp; schemaCollection)
     в System.Data.Entity.Core.SchemaObjectModel.SchemaManager.LoadProviderManifest(XmlReader xmlReader, String location, Boolean checkForSystemNamespace, Schema&amp; schema)
     в System.Data.Entity.Core.Common.DbXmlEnabledProviderManifest.Load(XmlReader reader)
     в System.Data.Entity.Core.Common.DbXmlEnabledProviderManifest..ctor(XmlReader reader)
     в System.Data.Entity.SqlServer.SqlProviderManifest..ctor(String manifestToken)
     в System.Data.Entity.SqlServer.SqlProviderServices.GetDbProviderManifest(String versionHint)
     в System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifest(String manifestToken)
  
  and it with inner exception:
  
  System.Configuration.ConfigurationErrorException: Unknown configuration section  userSettings. (C:\\Users\\Tema\\AppData\\Local\\Mgr\\Mgr.vshost.exe_Url_slqi2aqp0duilazpy21vojhl3ssnjluh\\1.0.0.0\\user.config line 3)
  StackTrace:
     в System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
     в System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)
     в System.Configuration.ClientConfigurationSystem.OnConfigRemoved(Object sender, InternalConfigEventArgs e)
  </code></pre>
  
  <p>Maybe anyone encountered this problem? Thank you.</p>