我们的项目已更新为从.net 4.0开始使用.net 4.5.1。在我的VS 2012中下载和更新.net 4.5.1之后,我的错误如下。任何一个可以帮助解决这个问题“TransformXml”任务意外失败
The "TransformXml" task failed unexpectedly.
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Web.XmlTransform, Version=1.4.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
File name: 'Microsoft.Web.XmlTransform, Version=1.4.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
at Microsoft.Web.Publishing.Tasks.TransformXml.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__20.MoveNext()
看起来像[this](http://stackoverflow.com/questions/14776659/error-doing-web-config-transformation-for-different-enviroments)。你有没有安装VS2012的更新2? – rene 2014-09-02 15:08:40