EF连接MySql 5.7存在的坑

使用EntityFramework6.1.X连接MySQL5.7存在的几个问题的解决办法.1.选择EF版本，弹出YourprojectreferencesthelatestversionofEF;however,anEFdatabaseprovidercompatiblewiththisversioncouldnotbefoundforyourdataconnnection...2.选择EF6.x之后，选择映射数据库对应的表后，弹出"Thevalueforcolumn'IsPrimaryKey'intalbe'XX'isDBNull.&qu