创建新的MVC项目 - EF和JQuery时出错 [英] Error creating new MVC project - EF and JQuery

问题描述

每当我创建一个新的MVC项目时，我收到一个错误 - 无法初始化Powershell主机，用于实体框架和Jquery。
错误：
以下软件包无法从'C：\Program Files\Microsoft ASP.NET\ASP.NET MVC 4\Packages'

Whenever I create a new MVC project, I am getting an error - failed to initialize Powershell host, for the entity framework and Jquery. The error: The following packages failed to install from 'C:\Program Files\Microsoft ASP.NET\ASP.NET MVC 4\Packages'

EntityFramework.5.0.0：无法初始化Powershell主机。如果您的PowerShell执行策略设置设置为AllSigned，请打开软件包管理器控制台以初始化主机。

EntityFramework.5.0.0: Failed to initialize the Powershell host. If your powershell execution policy setting is set to AllSigned, open the package manager console to initialize the host first.

jQuery.1.7.1.1：无法初始化Powershell主机。如果您的powershell执行策略设置设置为AllSigned，请打开包管理器控制台以初始化主机。

jQuery.1.7.1.1: Failed to initialize the Powershell host. If your powershell execution policy setting is set to AllSigned, open the package manager console to initialize the host first.

我可以删除Entity Framework参考，并手动添加，这是一个很好的解决方法，但它是烦人的，并且在某处有一些问题的迹象。任何想法在哪里看？

I can remove the Entity Framework reference, and add it manually, which is a good workaround, but it is annoying and a sign of some problem somewhere. Any ideas where to look?

此链接记录了类似的问题和解决方法：
http://social.msdn.microsoft.com/Forums/en/vssetup/thread/c934fed4-e44e-4a06 -9e3b-eccb9c8aa8d6

This link documents a similar problem and workaround: http://social.msdn.microsoft.com/Forums/en/vssetup/thread/c934fed4-e44e-4a06-9e3b-eccb9c8aa8d6

推荐答案

MSDN线程的其中一个回复为我工作。以管理员身份运行PowerShell，并运行以下命令：

One of the replies on the MSDN thread worked for me. Run PowerShell as an Administrator and run the following command:

Set-ExecutionPolicy AllSigned

请参阅使用Set-ExecutionPolicy Cmdlet 来获取安全性影响。

See Using the Set-ExecutionPolicy Cmdlet for security implications.

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