我想安装旧版本的包 ( Newtonsoft.Json
)。但 NuGet 回滚:
PM> Install-Package Newtonsoft.Json -Version 4.0.5
Successfully installed 'Newtonsoft.Json 4.0.5'.
Install failed. Rolling back...
Install-Package : Already referencing a newer version of 'Newtonsoft.Json'.
我该怎么做?