![c# - System.Data.Entity.Infrastructure.UnintentionalCodeFirstException was unhandled by user code HResult=-2146233079 - Stack Overflow c# - System.Data.Entity.Infrastructure.UnintentionalCodeFirstException was unhandled by user code HResult=-2146233079 - Stack Overflow](https://i.stack.imgur.com/eGVhH.png)
c# - System.Data.Entity.Infrastructure.UnintentionalCodeFirstException was unhandled by user code HResult=-2146233079 - Stack Overflow
![c# - System.Data.Entity.Infrastructure.UnintentionalCodeFirstException was unhandled by user code HResult=-2146233079 - Stack Overflow c# - System.Data.Entity.Infrastructure.UnintentionalCodeFirstException was unhandled by user code HResult=-2146233079 - Stack Overflow](https://i.stack.imgur.com/VHkPj.png)
c# - System.Data.Entity.Infrastructure.UnintentionalCodeFirstException was unhandled by user code HResult=-2146233079 - Stack Overflow
![c# - System.Data.Entity.Infrastructure.DbUpdateException error even when i am not updating the id column - Stack Overflow c# - System.Data.Entity.Infrastructure.DbUpdateException error even when i am not updating the id column - Stack Overflow](https://i.stack.imgur.com/h37hQ.png)
c# - System.Data.Entity.Infrastructure.DbUpdateException error even when i am not updating the id column - Stack Overflow
![c# - Why is Entity Framework 6.1.3 throwing a "Could not load type 'System. Data.Entity.Infrastructure.TableExistenceChecker'" - Stack Overflow c# - Why is Entity Framework 6.1.3 throwing a "Could not load type 'System. Data.Entity.Infrastructure.TableExistenceChecker'" - Stack Overflow](https://i.stack.imgur.com/uR3kH.png)
c# - Why is Entity Framework 6.1.3 throwing a "Could not load type 'System. Data.Entity.Infrastructure.TableExistenceChecker'" - Stack Overflow
![Exception: System Data Entity Infrastructure DbUpdateException - .Net Core | MVC | HTML Agility Pack | SQL | Technology Crowds Exception: System Data Entity Infrastructure DbUpdateException - .Net Core | MVC | HTML Agility Pack | SQL | Technology Crowds](https://2.bp.blogspot.com/-UrAQB7O9XIs/VbM_uSvpu8I/AAAAAAAABgs/p974k4x8CiM/s1600/Table-Identity-off.png)
Exception: System Data Entity Infrastructure DbUpdateException - .Net Core | MVC | HTML Agility Pack | SQL | Technology Crowds
![The Entity Framework provider type 'System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SQLite.EF6' could not be loade · Issue #832 ... The Entity Framework provider type 'System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SQLite.EF6' could not be loade · Issue #832 ...](https://user-images.githubusercontent.com/35128168/73648524-6c9cd180-4686-11ea-8e66-8ff75350129f.png)
The Entity Framework provider type 'System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SQLite.EF6' could not be loade · Issue #832 ...
![20180509_找不到方法:“Void System.Data.Entity.Infrastructure .DbEntityEntry`1.set_State(System.Data.EntityState)” - 印子- 博客园 20180509_找不到方法:“Void System.Data.Entity.Infrastructure .DbEntityEntry`1.set_State(System.Data.EntityState)” - 印子- 博客园](https://images2018.cnblogs.com/blog/462003/201805/462003-20180509151906067-284383756.png)
20180509_找不到方法:“Void System.Data.Entity.Infrastructure .DbEntityEntry`1.set_State(System.Data.EntityState)” - 印子- 博客园
![SqlQuery cannot be used inside of HistoryContext within a DbCommandtreeInterceptor, when using -SourceMigration:0 · Issue #153 · zzzprojects/EntityFramework.DynamicFilters · GitHub SqlQuery cannot be used inside of HistoryContext within a DbCommandtreeInterceptor, when using -SourceMigration:0 · Issue #153 · zzzprojects/EntityFramework.DynamicFilters · GitHub](https://user-images.githubusercontent.com/4762399/56545364-5b308000-65b2-11e9-8573-f7767c420818.png)
SqlQuery cannot be used inside of HistoryContext within a DbCommandtreeInterceptor, when using -SourceMigration:0 · Issue #153 · zzzprojects/EntityFramework.DynamicFilters · GitHub
![MVC开发中的常见错误-05-无法将类型“System.Data.Entity.Infrastructure .DbQuery<BBFJ.OA.Model.RoleInfo>”转换为“System.Collections.Generic.List<BBFJ.OA.Model.RoleInfo>” - 逍遥小天狼- MVC开发中的常见错误-05-无法将类型“System.Data.Entity.Infrastructure .DbQuery<BBFJ.OA.Model.RoleInfo>”转换为“System.Collections.Generic.List<BBFJ.OA.Model.RoleInfo>” - 逍遥小天狼-](https://images2015.cnblogs.com/blog/1126880/201704/1126880-20170401155758352-1500614346.png)