按照https://github.com/groovy/groovy-eclipse/blob/master/docs/Getting-Started-with-Groovy-Eclipse-Source-Code.md（在 macOS High Sierra 上）中的步骤后出现错误：
ERROR: org.eclipse.equinox.p2.director code=10053 Cannot complete the install because one or more required items could not be found.
ERROR: org.eclipse.equinox.p2.director code=0 Software being installed: artificial_root 1.0.0.v1527811536694
ERROR: org.eclipse.equinox.p2.director code=0 Missing requirement: artificial_root 1.0.0.v1527811536694 requires 'org.codehaus.groovy.alltests.feature.feature.group 0.0.0' but it could not be found
我不确定为什么找不到 org.codehaus.groovy.alltests 以及版本 0.0.0 在这里是否合法。我也尝试进行全新安装（已删除 ~/.gradle、~/.p2 目录） - 没有帮助。