Grails / Groovy / GGTS: Conflicting module versions on run-app

I had the same problem, I was picking up groovy-all 2.0.7 from GGTS and 2.0.8 from my grails project. To resolve the problem I removed the "Groovy Dependencies" library from the eclipse project.

Right click on project -> Properties -> Java Build Path -> Libraries (tab) -> Groovy Dependencies -> Remove

i had this problem on Grails 2.2.0 on Ubuntu machine , i fixed it with the below steps :

1. open eclipse go to "Run as" the "Run Configurations"
2. choose "Environment" tab , then choose "replace native environment with specified environment "

that solved the problem for me .. hope this help