在Eclipse WindowBuilder编辑器中，“设计"选项卡未显示任何内容
当我在java项目中创建一个jframe时，它显示了 Source 部分中的所有代码，但是当我进入 Design 时，它什么也没显示?希望获得有关如何获得自定义GUI的整个界面的帮助.
When I create a jframe within a java project it shows me all the code in the Source part but when I go to Design it shows nothing? Would like some help on how to get the whole interface where you customise the GUI.
这是Eclipse 2020-09发行版的已知问题，该问题已已修复(请参阅 Eclipse错误567071 ).
That's a known issue of the Eclipse 2020-09 release which is already fixed (see Eclipse bug 567071).
通过Eclipse Marketplace 或通过帮助更新到WindowBuilder 1.9.4 >安装新软件... 并使用更新站点 http://download.eclipse.org/windowbuilder/latest/
Update to WindowBuilder 1.9.4 either via the Eclipse Marketplace or via Help > Install New Software... and working with the update site http://download.eclipse.org/windowbuilder/latest/.