Microsoft.Build.Framework.ITask is not implement in

Nov 13, 2011 at 8:20 PM

I have downloaded v via nuget. And I get the error message

The system cannot find the file specified. Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.

Jan 27, 2012 at 7:17 AM

See this thread for a workaround:

It will be fixed in the next release

Jan 30, 2012 at 7:37 AM

Fixed in

Jan 30, 2012 at 9:31 AM

The fix for this was that the version of the assembly listed in your .xml file should be referencing the YUICompressor 'MSBuild' dll.


        AssemblyFile="...........Yahoo.Yui.Compressor.MSBuild.dll" /> 

(or whatever that dll is named, as).