WP8 Project: The "CompileXaml" task failed unexpectedly
c#, visual-studio, windows-phone, windows-phone-8
Solution
Install Visual Studio 2012 Update 4, and then latest update for the Phone SDK.
Origin.
Problem
I've reinstalled Windows on my computer, and after I open any Windows Phone 8 project in Visual Studio 2012 for Windows Phone, I get the following error message: ``` The "CompileXaml" task failed unexpectedly. System.IO.FileNotFoundException: Could not load file or assembly 'XamlServicesWP, Version=11.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the specified file. File name: 'XamlServicesWP, Version=11.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' Server stack trace: at Microsoft.Silverlight.Build.Tasks.CompileXaml.GenerateCode(ITaskItem item, Boolean isApplication) at Microsoft.Silverlight.Build.Tasks.CompileXaml.Execute() at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs) at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg) Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) at Microsoft.Build.Framework.ITask.Execute() at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__20.MoveNext() WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. MyProject ``` I tried to reinstall Visual Studio twice, but it didn't solve it.. How can I solve this?