在我的解决方案中列出包
PM> Get-Package
Id Version Description/Release Notes
-- ------- -------------------------
...
T4MVC 3.2.0 T4MVC is a T4 template that generates strongly typed helpers for ASP.NET MVC.
T4MVCExtensions 3.2.0 Runtime helpers used by code generated by T4MVC
...
检查可用的T4MVC版本：
PM> Get-Package -ListAvailable -Filter T4MVC
Id Version Description/Release Notes
-- ------- -------------------------
...
T4MVC 3.5.3 T4MVC is a T4 template that generates strongly typed helpers for ASP.NET MVC.
T4MVCExtensions 3.5.3 Runtime helpers used by code generated by T4MVC
...
尝试更新：
PM> Get-Package -Updates
No package updates are available from the current package source.
我的安装有什么问题？
更新：
答案 0 :(得分：0)
当我尝试测试解决方案时，我实际上看到了和你一样的东西。但在清理我的解决方案并重新启动VS后，它开始正常工作。
PM> Get-Package -Updates
Id Version Description/Release Notes
-- ------- -------------------------
EntityFramework 5.0.0 Entity Framework is Microsoft's recommended data access technology for new applications.
jQuery 2.0.0 jQuery is a new kind of JavaScript Library....
jQuery.UI.Combined 1.10.2 jQuery UI is an open source library of interface components — interactions, full-featured widgets, and animation effects — based on the stellar jQuery javascript library . Each component is built according to jQ...
jQuery.Validation 1.11.1 This jQuery plugin makes simple clientside form validation trivial, while offering lots of option for customization. That makes a good choice if you’re building something new from scratch, but also when you’re t...
Modernizr 2.6.2 Modernizr adds classes to the <html> element which allow you to target specific browser functionality in your stylesheet. You don't actually need to write any Javascript to use it....
T4MVC 3.5.4 T4MVC is a T4 template that generates strongly typed helpers for ASP.NET MVC.
T4MVCExtensions 3.5.4 Runtime helpers used by code generated by T4MVC
所以我不确定这笔交易是什么，它可能是一个NuGet错误，但至少可能提供一个解决方法。
答案 1 :(得分：0)
这似乎是NuGet中的一个错误，这是来自其他人的错误报告： http://nuget.codeplex.com/workitem/3289
解决方法很简单：更新适用于单个项目，而不适用于解决方案。