无法通过Tools -> Add Library Package Reference正常安装EFCodeFirst,。 解决办法:Tools -> Package Manager Console 执行:Install-Package EFCodeFirst 相关文章: 2021-08-30 2021-05-13 2022-12-23 2021-06-06 2021-07-26 2022-12-23 2022-03-02 2022-03-06