【发布时间】：2020-02-20 08:36:17
【问题描述】：
我需要帮助，在 activity_main.xml 中的设计选项卡上，单击小部件会导致错误。此外，无论我单击哪个小部件的属性面板都是空白的，有时会显示加载但从未出现。尝试切换到“所有属性视图”，但仍然可以更改任何属性。 已经尝试停用即时运行，使缓存无效，IntelliJ 版本稍旧，删除并重新下载 IntelliJ 和“清理项目”
错误信息：
java.lang.NoClassDefFoundError: com/sun/java/swing/plaf/windows/WindowsComboBoxUI
at com.android.tools.idea.common.property.editors.EnumEditor$CustomComboBox.setUI(EnumEditor.java:470)
at java.desktop/javax.swing.JComboBox.updateUI(JComboBox.java:277)
at java.desktop/javax.swing.JComboBox.init(JComboBox.java:236)
at java.desktop/javax.swing.JComboBox.<init>(JComboBox.java:230)
at com.intellij.openapi.ui.ComboBoxWithWidePopup.<init>(ComboBoxWithWidePopup.java:15)
at com.intellij.openapi.ui.ComboBox.<init>(ComboBox.java:44)
at com.android.tools.idea.common.property.editors.EnumEditor$CustomComboBox.<init>(EnumEditor.java:440)
at com.android.tools.idea.uibuilder.property.editors.NlEnumEditor.createForInspectorWithBrowseButton(NlEnumEditor.java:45)
at com.android.tools.idea.uibuilder.property.inspector.IdInspectorProvider$IdInspectorComponent.<init>(IdInspectorProvider.java:96)
at com.android.tools.idea.uibuilder.property.inspector.IdInspectorProvider.createCustomInspector(IdInspectorProvider.java:74)
at com.android.tools.idea.uibuilder.property.inspector.IdInspectorProvider.createCustomInspector(IdInspectorProvider.java:39)
at com.android.tools.idea.common.property.inspector.InspectorProviders.createInspectorComponents(InspectorProviders.java:54)
at com.android.tools.idea.common.property.inspector.InspectorPanel.setComponent(InspectorPanel.java:260)
at com.android.tools.idea.uibuilder.property.NlPropertiesPanel.setItems(NlPropertiesPanel.java:281)
at com.android.tools.idea.common.property.PropertiesManager.lambda$null$0(PropertiesManager.java:247)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:776)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:746)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:824)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:773)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:412)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:704)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:411)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: java.lang.ClassNotFoundException: com.sun.java.swing.plaf.windows.WindowsComboBoxUI PluginClassLoader[org.jetbrains.android, 10.3.4] com.intellij.ide.plugins.cl.PluginClassLoader@7355d4d1
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:75)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 33 more
【问题讨论】：
标签： android android-studio intellij-idea plugins