安装MvcScaffolding包时出现NuGet执行策略错误

Question

我正在使用Visual Web Developer Express 2010,Windows XP,并在项目中使用ASP.NET MVC4 RC.我安装了NuGet v2.0.30619.9119.

我现在正尝试通过NuGet Package Manager Console安装MvcScaffolding软件包.我收到以下错误:

PM> Install-Package MvcScaffolding
Attempting to resolve dependency 'T4Scaffolding'.
Attempting to resolve dependency 'EntityFramework (? 4.1.10311.0)'.
You are downloading EntityFramework from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=224682. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'EntityFramework 4.1.10715.0'.
Successfully installed 'T4Scaffolding 1.0.6'.
File Y:\asp\packages\T4Scaffolding.1.0.6\tools\init.ps1 cannot be loaded. The file Y:\asp\packages\T4Scaffolding.1.0.6\tools\init.ps
1 is not digitally signed. The script will not execute on the system. Please see "get-help about_signing" for more details..
At line:1 char:2
+ & <<<<  'Y:\asp\packages\T4Scaffolding.1.0.6\tools\init.ps1' $__rootPath $__toolsPath $__package $__project
    + CategoryInfo          : NotSpecified: (:) [], PSSecurityException
    + FullyQualifiedErrorId : RuntimeException

Successfully installed 'MvcScaffolding 1.0.7'.
File Y:\asp\packages\MvcScaffolding.1.0.7\tools\init.ps1 cannot be loaded. The file Y:\asp\packages\MvcScaffolding.1.0.7\tools\init.
ps1 is not digitally signed. The script will not execute on the system. Please see "get-help about_signing" for more details..
At line:1 char:2
+ & <<<<  'Y:\asp\packages\MvcScaffolding.1.0.7\tools\init.ps1' $__rootPath $__toolsPath $__package $__project
    + CategoryInfo          : NotSpecified: (:) [], PSSecurityException
    + FullyQualifiedErrorId : RuntimeException

Successfully added 'EntityFramework 4.1.10715.0' to MyProject.Web.
Successfully added 'T4Scaffolding 1.0.6' to MyProject.Web.
File Y:\asp\packages\T4Scaffolding.1.0.6\tools\install.ps1 cannot be loaded. The file Y:\asp\packages\T4Scaffolding.1.0.6\tools\inst
all.ps1 is not digitally signed. The script will not execute on the system. Please see "get-help about_signing" for more details..
At line:1 char:2
+ & <<<<  'Y:\asp\packages\T4Scaffolding.1.0.6\tools\install.ps1' $__rootPath $__toolsPath $__package $__project
    + CategoryInfo          : NotSpecified: (:) [], PSSecurityException
    + FullyQualifiedErrorId : RuntimeException

'InstallationDummyFile.txt' already exists. Skipping...
Successfully added 'MvcScaffolding 1.0.7' to MyProject.Web.
File Y:\asp\packages\MvcScaffolding.1.0.7\tools\install.ps1 cannot be loaded. The file Y:\asp\packages\MvcScaffolding.1.0.7\tools\in
stall.ps1 is not digitally signed. The script will not execute on the system. Please see "get-help about_signing" for more details..
At line:1 char:2
+ & <<<<  'Y:\asp\packages\MvcScaffolding.1.0.7\tools\install.ps1' $__rootPath $__toolsPath $__package $__project
    + CategoryInfo          : NotSpecified: (:) [], PSSecurityException
    + FullyQualifiedErrorId : RuntimeException

由于安装后未执行init脚本,因此未正确安装MvcScaffolding软件包并且scaffold无法识别该命令.

我不知道如何处理这些代码签名问题.以下是当前的安全设置:

PM> Get-ExecutionPolicy -List
Scope           ExecutionPolicy
-----           ---------------
MachinePolicy   Undefined
UserPolicy      Undefined
Process         RemoteSigned
CurrentUser     Undefined
LocalMachine    Unrestricted

我可以将Process范围更改为Unrestricted吗？如果是这样,怎么样？Set-ExecutionPolicy在NuGet控制台中运行不起作用:

PM> Set-ExecutionPolicy Unrestricted
Execution Policy Change
The execution policy helps protect you from scripts that you do not trust. Changing the execution policy might expose you to the security risks described in the about_Execution_Policies help topic. Do you want to change the execution policy?
[Y] Yes  [N] No  [S] Suspend  [?] Help (default is "Y"):Y
Set-ExecutionPolicy : Windows PowerShell updated your execution policy successfully, but the setting is overridden by a policy defined at a more specific scope.  Due to the override, your shell will
 retain its current effective execution policy of "RemoteSigned". Type "Get-ExecutionPolicy -List" to view your execution policy settings. For more information, please see "Get-Help Set-ExecutionPol
icy."
At line:1 char:20
+ Set-ExecutionPolicy <<<<  Unrestricted
    + CategoryInfo          : PermissionDenied: (:) [Set-ExecutionPolicy], SecurityException
    + FullyQualifiedErrorId : ExecutionPolicyOverride,Microsoft.PowerShell.Commands.SetExecutionPolicyCommand

我也尝试过以管理员身份做这一切,但也没有帮助.

任何建议或想法将不胜感激.

UPDATE

我可以在NuGet中设置流程执行策略,如下所示:

Set-ExecutionPolicy Unrestricted -Scope Process

但是当我重新启动Visual Web Developer时,设置被遗忘了,我仍然遇到错误,因为它一直在尝试执行init.psl文件

如何永久更改执行策略？

Answer 1

好的,我现在正确安装了MvcScaffolding.

我不得不首先绕过NuGet中的所有安全性:

Set-ExecutionPolicy Bypass -Scope Process

但是,当我重新启动Visual Web Developer时,我仍然会init.pls在启动时运行NuGet时遇到相同的PowerShell错误.

我已经知道这是因为我将我的项目存储在网络驱动器上.显然,PowerShell默认情况下不会从网络驱动器执行脚本.

我尝试使用CasPol来更改安全设置,但无法使其工作.当我看到其他人无法让VS使用映射驱动器时,我放弃了:

CAS不适用于VS2010映射驱动器

无论如何,我现在只有我的项目本地,并且MvcScaffolding已安装并正常工作.