Visual Studio LightSwitch 2011 cannot deploy a Web Project via WebDeploy v2.0+

I am receiving the following error when attempting to publish a Visual Studio LightSwitch 2011 project ...

Error 1 The "VSMSDeploy" task failed unexpectedly.
System.ArgumentException: Version string portion was too short or too long.
   at System.Version.VersionResult
          .SetFailure(ParseFailureKind failure, String argument)
   at System.Version.TryParseVersion(String version, VersionResult& result)
   at System.Version.Parse(String input)
   at System.Version..ctor(String version)
   at Microsoft.Web.Publishing.Tasks.Common.Utility.CheckMSDeploymentVersion()
   at Microsoft.Web.Publishing.Tasks.Common.Utility.get_IsMSDeployInstalled()
   at Microsoft.Web.Publishing.Tasks.Common.Utility
          .CheckMSDeploymentVersion(Task task)
   at Microsoft.Web.Publishing.Tasks.VSMSDeploy.Execute()
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd
          .ITaskExecutionHost.Execute()
   at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(
          ITaskExecutionHost taskExecutionHost, 
          TaskLoggingContext taskLoggingContext, 
          TaskHost taskHost, ItemB开发者_C百科ucket bucket, 
          TaskExecutionMode howToExecuteTask, Boolean& taskResult)  
    C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\LightSwitch\v1.0\
          Microsoft.LightSwitch.targets 96410Application3

I have tried re-installing Web Deploy (both 2.0, via the website, and 2.1, via the WebPI) but no joy.

It turns out Visual Studio LightSwitch 2011 requires Web Deploy 1.1 which was not installed by its installer (2.0 had previously been installed by WebMatrix and I also tried 2.1 via the WebPI). My problem was solved after I downloaded it from the Microsoft Download Center:

• Web Deployment Tool (x64)
• Web Deployment Tool (x86)

This did make me wonder why LightSwitch doesn't support WebDeploy 2.0/2.1, and also installs SQL Server Express 2008 rather than 2008 R2, but that is a question for another time