entity-framework - 包管理器控制台仅在特定 VS 项目中启用迁移 CommandNotFoundException

Question

我尝试在新项目中运行命令“Enable-Migrations”，并收到消息:

PM> Enable-Migrations
The term 'Enable-Migrations' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verif
y that the path is correct and try again.
At line:1 char:18
+ Enable-Migrations <<<< 
    + CategoryInfo          : ObjectNotFound: (Enable-Migrations:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

但在所有其他项目中，该命令运行得很好。

为什么会发生这种情况？

顺便说一句，我使用的是 VS2010 Professional SP1

编辑:我使用命令重新安装:Install-Package EntityFramework -IncludePrerelease然后问题就消失了。

Answer 1

我使用命令重新安装:Install-Package EntityFramework -IncludePrerelease，问题就消失了。