I have recently installed the new Azure development tools for Visual Studio 2010 service pack 1. Every time that I try to publish an existing website (using file system depl
Right click the project and select Edit (project name).csproj. (e.g. Edit in notepad) Look for Add the following above the line.
13.0 $(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion) Save and Reload project.
This really work for me, Thanks