Null child action in group *** of class class com.intellij.openapi.actionSystem.DefaultActionGroup

初探intellij，记录个问题   

出现下面的错误，并且菜单里面没有出现想要的按钮

java.lang.Throwable: Null child action in group Edit () of class class com.intellij.openapi.actionSystem.DefaultActionGroup, id=myTestPlugin
    at com.intellij.openapi.diagnostic.Logger.error(Logger.java:126)
    at com.intellij.openapi.actionSystem.DefaultActionGroup.unStub(DefaultActionGroup.java:349)
    at com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(DefaultActionGroup.java:305)
    at com.intellij.openapi.actionSystem.impl.Utils.expandActionGroup(Utils.java:185)
    at com.intellij.openapi.actionSystem.impl.Utils.fillMenu(Utils.java:350)
    at com.intellij.openapi.actionSystem.impl.ActionMenu.fillMenu(ActionMenu.java:321)
    at com.intellij.openapi.actionSystem.impl.ActionMenu.access$600(ActionMenu.java:42)
    at com.intellij.openapi.actionSystem.impl.ActionMenu$MenuListenerImpl.menuSelected(ActionMenu.java:276)
    at javax.swing.JMenu.fireMenuSelected(JMenu.java:1038)
    at javax.swing.JMenu$MenuChangeListener.stateChanged(JMenu.java:1118)
    at javax.swing.DefaultButtonModel.fireStateChanged(DefaultButtonModel.java:349)
    at javax.swing.DefaultButtonModel.setSelected(DefaultButtonModel.java:232)
    at javax.swing.JMenu.setSelected(JMenu.java:305)
    at javax.swing.JMenu.menuSelectionChanged(JMenu.java:1187)
    at com.intellij.openapi.actionSystem.impl.ActionMenu.menuSelectionChanged(ActionMenu.java:240)
    at javax.swing.MenuSelectionManager.setSelectedPath(MenuSelectionManager.java:125)
    at javax.swing.plaf.basic.BasicMenuUI$Handler.mouseEntered(BasicMenuUI.java:526)
    at java.awt.Component.processMouseEvent(Component.java:6557)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3325)
    at java.awt.Component.processEvent(Component.java:6313)
    at java.awt.Container.processEvent(Container.java:2237)
    at java.awt.Component.dispatchEventImpl(Component.java:4903)
    at java.awt.Container.dispatchEventImpl(Container.java:2295)
    at java.awt.Component.dispatchEvent(Component.java:4725)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4889)
    at java.awt.LightweightDispatcher.retargetMouseEnterExit(Container.java:4677)
    at java.awt.LightweightDispatcher.trackMouseEnterExit(Container.java:4655)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4506)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4467)
    at java.awt.Container.dispatchEventImpl(Container.java:2281)
    at java.awt.Window.dispatchEventImpl(Window.java:2746)
    at java.awt.Component.dispatchEvent(Component.java:4725)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
    at java.awt.EventQueue.access$500(EventQueue.java:98)
    at java.awt.EventQueue$3.run(EventQueue.java:715)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
    at java.awt.EventQueue$4.run(EventQueue.java:737)
    at java.awt.EventQueue$4.run(EventQueue.java:735)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
    at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:817)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:754)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:394)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

 

 

 

我认为原因在于我的jdk的版本和intellij的版本对不上

解决办法：版本改成右边的这个，加上1.8的jdk，编出来的插件就没有上面那个问题了