The "SlowCheetah.Xdt.TransformXml" task could not be loaded from the assembly

Solution 1:

In my case the error occured while compiling a web project. The folder

%userprofile%\AppData\Local\Microsoft\MSBuild\SlowCheetah\v2.5.10.2

was empty. All the SlowCheetah components were in SlowCheetah\v1 folder instead. I've copied all files from V1 folder to v2.5.10.2 and everything compiled and transformed fine. To make non web projects compile, I also had to delete V1 folder as suggested by Whoever in this thread.

This was a brand new installation of the SlowCheetah Extension and I did not expect the v1 folder to exist at all. I believe this was a bug in the extension installation for Visual Studio 2012.

Solution 2:

delete

  AppData\Local\Microsoft\MSBuild\SlowCheetah\v1