the type initializer for 'system.data.entity.internal.appconfig' threw an exception. c#

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<?xml version="1.0" encoding="utf-8"?>

<configuration>
  <appSettings>

  </appSettings>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
  </startup>
  <connectionStrings>
    <add name="FeedAccountEntities" connectionString="metadata=res://*/FeedAccountsDetails.csdl|res://*/FeedAccountsDetails.ssdl|res://*/FeedAccountsDetails.msl;provider=System.Data.SqlClient;provider connection string='data source=NGWS23\SQLEXPRESS;initial catalog=FeedAccount;persist security info=True;user id=sa;MultipleActiveResultSets=True;App=EntityFramework'" providerName="System.Data.EntityClient" />

  </connectionStrings>

  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
  </configSections>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />

  </entityFramework>

</configuration>

Posted 5-Mar-15 0:54am

satheeshkumar chinnadurai

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Richard Deeming 5-Mar-15 7:04am

A TypeInitializationException will have an InnerException which contains the important details.

2 solutions

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Navan M · Answer 1 · 2015-11-23T02:08:00

Solution 2

Just remove the provider under the entityFramwork section, It worked for me

XML

<providers>
  <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>

Posted 23-Nov-15 2:08am

Navan M

Comments

Alexander Immanuel D 5-Sep-16 13:16pm

Wow that worked for me!! Thanks!

pproost@hotmail.com 24-Oct-16 4:20am

This also works for me, do you know what the reason is for the error or why the fix works?

Praneet Nadkar · Answer 2 · 2015-03-05T01:04:00

Solution 1

Hi,

Your App.config file has Entity Framework 6.0 listed, and some project in your code is still holding onto EF with an older version and expecting to find it in the App.config file. Or vice versa.

Check for the versions

Posted 5-Mar-15 1:04am

Praneet Nadkar