包管理器控制台 Enable-Migrations CommandNotFoundException 仅在特定的 VS 项目中 [英] Package Manager Console Enable-Migrations CommandNotFoundException only in a specific VS project

问题描述

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 -IncludePrerelease and 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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