Eclipse GMF 仪表板：生成图编辑器失败 ("Problems while generating code")

Eclipse GMF Dashboard: Generate diagram editor fails ("Problems while generating code")

尝试遵循本教程 (https://wiki.eclipse.org/Graphical_Modeling_Framework/Tutorial/Part_4) 并创建 RCP 图编辑器。 一切正常，直到最后一步“生成图表编辑器”失败并显示此错误消息：

'Executable Templates' has encountered a problem.

Problems while generating code

...详细显示一堆：

Exception (Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 18) while generating code Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 18 Exception (Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 83) while generating code Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 83 Exception (Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 18) while generating code Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 18 Exception (Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 83) while generating code Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 83 Exception (Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 89) while generating code Boolean expected (was: org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl)!:in CodeStyle, line 89

我是 eclipse 和 GMF 的新手，不知道我可能忽略了什么和配置错误。 （我正在使用当前的 Mars-Eclipse，通过“帮助”>“安装新软件”安装了 GMF-Stuff） 可能是什么问题？

在 genmodel 中将合规性设置为 6.0。

更多信息here