I have faced following weird exception on GGTS IDE .
Command terminated with an exception: org.grails.ide.eclipse.longrunning.client.GrailsProcessDiedExc
In the end , I found a solution about this problem. I was give up to continue after couple of days investigation on GGTS and decided to install Intellij 12 on mac. Installed trial licence for İntellij. I was expecting to avoid this problem. However I faced again an another wierd exception on İntellij. I had started to investigate current problem on intellij forums.
As a result,I found following advice to solve issue on intellij environment. The following instruction also solve my GGTS problem on mac.
Grails 2.3.0.RC1 and IntelliJ IDEA: "IDEA hook: Grails not found!"
it was referencing following solution also on stackoverflow.com
grails-2.3.0.M1 fails to start in IntelliJ IDEA 130.754
Solution : remove all "grails--2.3.0.M1-sources.jar" and "grails--2.3.0.M1-javadocs.jar" from $GRAILS_HOME/dist
Regards
This link suggests a workaround for your error message.
I remember that I encountered this problem firstly with GGTS 3.2.0 and solved it with the following workaround: In GGTS click
Preferences -> Groovy -> Grails -> Launch Grails and uncheck “Keep external Grails running“.
The workaround was suggested by https://issuetracker.springsource.com/browse/STS-3277 and the issue is marked as solved, but obviously it still exists at least in GGTS 3.4.0 and GGTS 3.5.0.M1.
Nevertheless, while using the suggested workaround (uncheck ”Keep external Grails running“) the GrailsProcessDiedException disappeared and the problem was solved.
Regards