<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission
 
="false" />
    </configSections>
    <entityFramework>
        <providers>
            <provider invariantName="System.Data.SQLite" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" />
            <provider invariantName="System.Data.SqlClient" type
 
="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
            <provider invariantName="System.Data.SQLite.EF6" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" />
        </providers>
    </entityFramework>
    <system.data
 
>
        <DbProviderFactories>
            <remove invariant="System.Data.SQLite.EF6" />
            <add name="SQLite Data Provider (Entity Framework 6)" invariant="System.Data.SQLite.EF6" description=".NET Framework Data Provider for SQLite (Entity Framework 6)" type="System.Data.SQLite.EF6.SQLiteProviderFactory, System.Data.SQLite.EF6" />
            <remove invariant="System.Data.SQLite" />
            <add name='SQLiteData Provider' invariant='System.Data.SQLite' description='.Net Framework DataProvider for SQLite' type='System.Data.SQLite.SQLiteFactory,System.Data.SQLite'/>
        </DbProviderFactories>
    </system.data>
    <connectionStrings>
        <add name="mainEntities2" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SQLite.EF6;provider connection string=&quot;data source=E:\工作\WpfApp2\SqliteEfTest\DataBase.db&quot;" providerName="System.Data.EntityClient" />
    </connectionStrings>
</configuration>

<add name='SQLiteData Provider' invariant='System.Data.SQLite' description='.Net Framework DataProvider for SQLite' type='System.Data.SQLite.SQLiteFactory,System.Data.SQLite'/>

System.NotSupportedException:“Unable to determine the provider name for provider factory of type 'System.Data.SQLite.SQLiteFactory'. Make sure that the ADO.NET provider is installed or registered in the application config.”