Question

尝试按此PM> Install-Package Ext.NET.MVC进行安装时，我收到此错误。

错误明细：

PM> Install-Package Ext.NET.MVC
Attempting to resolve dependency 'Ext.NET.Utilities (≥ 2.4.0)'.
Attempting to resolve dependency 'Transformer.NET (≥ 2.1.1)'.
Install-Package : '2.1.1-PREVIEW' is not a valid version string.
Parameter name: version
At line:1 char:1
+ Install-Package Ext.NET.MVC
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Install-Package], ArgumentException
    + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand

我已经更新了包管理器控制台。

Package Manager Console Host Version 2.8.50313.31
I am using VS 2012,project I have created mvc 4

*我也尝试像这样安装，但结果相同：PM> Install-Package Ext.NET.MVC4

更新

安装变压器后，尝试安装Mvc4，我收到类似这样的错误

Install failed. Rolling back...
Install-Package : Failed to add reference to 'Ext.Net'.
At line:1 char:1
+ Install-Package Ext.NET.MVC4
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Install-Package], InvalidOperationException
    + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand

Answer 1

如果在旧软件包上安装新软件包，有时会出现此类问题。请先尝试重新安装：

Uninstall-Package Ext.NET.MVC

然后重新安装

Install-Package Ext.NET.MVC

试图解决依赖'Transformer.NET（≥2.1.1）'。 Install-Package：'2.1.1-PREVIEW'不是有效的版本字符串

1 个答案: