GGTS不支持Grails 3.一年以来没有人维护GGTS，所以它看起来它不会支持Grails 3.我建议改用IntelliJ。

GGTS does not support Grails 3. Nobody has been maintaining GGTS for over a year, so it doesn't look like it ever will support Grails 3. I recommend switching to IntelliJ instead.