我正在尝试将现有的Java项目导入Netbeans。 我已经将相关的jar文件导入到项目中，但是当我运行主类时，它将引发此异常。
如何解决此问题？ 预先感谢
run:
Exception in thread "main" java.lang.NoSuchFieldError: IS_LAF_WINDOWS_XP_ENABLED
at com.jgoodies.looks.LookUtils.<clinit>(LookUtils.java:85)
at com.jgoodies.looks.plastic.PlasticLookAndFeel.<clinit>(PlasticLookAndFeel.java:126)
at org.addition.epanet.ui.EpanetUI.main(EpanetUI.java:579)
C:\Users\Monster_PC\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 1 second)[enter image description here][1]