I unsuccessfully tried using the Grails plugin on Eclipse. After much work on finding the right repositories for missing dependencies, the Grails plugin almost took over Eclipse, it became the quasi STS Eclipse. Even the home window has become the STS window!
I think that STS manufacturers are mainly trying to convince you to switch to STS, instead of using their almost useless plug-in, and they experience pain when working with the plug-in and get an STS clone at the end.
You are better off using STS, but my name is that people who like Eclipse or MyEclipse should be forced to use the special version of Eclipse for STS.
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