使用windowsbuilder时点击design显示Windowsbuilder was not able to show GUI

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“WindowBuilder was not able to show the GUI“报错解决_~关山难越QWQ~的博客-CSDN博客 问题：javafx项目改成swing项目，下载可视化windowbuilder后建立样例打开，切到design界面想在可视化窗口中预览可视化效果发现如下报错："WindowBuilder was not able to show the GUI"解决：将38行注释掉，更新一下，再去掉//注释符号，发现不再报错。问题解决了，但是不知道原因。。。... https://blog.csdn.net/qq_53333285/article/details/121433667?utm_source=app&app_version=4.21.0