STS: updating grails dependency has failed

With STS Version: 2.5.2.RELEASE. I keep getting following error. when I try to refresh dependencies on any grails project.

Code:

---

updating grails dependencies for project xxx has encountered a problem

Command failed, see details for output.
------System.out:-----------
 
------System.err:-----------

---

I am not even able to debug or run-app from the eclipse.

You might want to ask this on the Spring Tools forum. I would certainly contemplate removing the project from the workspace, deleting the .classpath and .project files, and reimporting the project. Not sure if that's the best way of getting the STS files regenerated, so definitely ask in the Tools forum first.

I had the same problem.
If you are running on Windows (I'm using Windows 8), try running eclipse 'as administrator'.
The error message disappears and all is well.
Somewhere in the pizza cheese of plugin dependencies, something can't be accessed, I guess...
Cheers,
Tom.