软件包管理器控制台启用迁移仅在特定VS项目中的CommandNotFoundException

问题描述

我尝试在新项目中运行命令启用迁移，并收到以下消息：

  PM>启用迁移
术语启用迁移不被识别为cmdlet，函数，脚本文件或可操作程序的名称。检查名称的拼写，或者如果包含路径，则验证路径是否正确，然后重试。 
在行：1 char：18 
 +启用迁移<<<< 
 + CategoryInfo：ObjectNotFound：（Enable-Migrations：String）[]，CommandNotFoundException 
 + FullyQualifiedErrorId：CommandNotFoundException 
  

但是在所有其他项目中，命令运行正常。

为什么会这样？

我使用VS2010 Professional SP1

编辑：我使用逗号重新安装： Install-Package EntityFramework -

解决方案

我用commmand重新安装：Install-Package EntityFramework - 包括预发行，问题消失了。

I tried to run the command 'Enable-Migrations' in a new project and I got the message:

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

But in all other projects the command runs just fine.

Why is this happening?

BTW, I'm using VS2010 Professional SP1

EDIT: I reinstalled with the commmand: Install-Package EntityFramework -IncludePrereleaseand the problem went away.

解决方案

I reinstalled with the commmand: Install-Package EntityFramework -IncludePrerelease and the problem went away.

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