< 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.”