Method ‘Create‘ in type ‘Pomelo.EntityFrameworkCore.MySql.Query.ExpressionVisitors.Internal.MySqlSql

Method ‘Create’ in type ‘Pomelo.EntityFrameworkCore.MySql.Query.ExpressionVisitors.Internal.MySqlSqlTranslatingExpressionVisitorFactory’ from assembly ‘Pomelo.EntityFrameworkCore.MySql, Version=3.1.0.0, Culture=neutral, PublicKeyToken=2cc498582444921b’ does not have an implementation.

在net 中出现这个问题 其实就是 你的EF 与 mysql 的版本对应失败了，请全部降为 3.X 或者升级为5.x
保持一致，就可以解决问题了