Android Studio 4.2.1 启动时出现 NullPointer 异常

如何解决Android Studio 4.2.1 启动时出现 NullPointer 异常

我今天想继续使用 Android Studio 开发我的应用程序，但是当我想启动 Android Studio 时，我目前每次都会收到如下错误消息。我没有更改系统上的任何内容，也没有进行 Java 更新。

我很高兴能得到快速帮助

问候亚历克斯

Internal error. Please refer to https://code.google.com/p/android/issues

java.lang.NullPointerException
    at java.desktop/javax.swing.plaf.basic.BasicTextUI$RootView.paint(BasicTextUI.java:1524)
    at java.desktop/javax.swing.plaf.basic.BasicTextUI.paintSafely(BasicTextUI.java:753)
    at java.desktop/javax.swing.plaf.basic.BasicTextUI.paint(BasicTextUI.java:911)
    at java.desktop/javax.swing.plaf.basic.BasicTextUI.update(BasicTextUI.java:890)
    at java.desktop/javax.swing.JComponent.paintComponent(JComponent.java:800)
    at java.desktop/javax.swing.JComponent.paint(JComponent.java:1077)
    at java.desktop/javax.swing.JComponent.paintToOffscreen(JComponent.java:5263)
    at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBufferedImpl(RepaintManager.java:1654)
    at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1629)
    at java.desktop/javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1566)
    at java.desktop/javax.swing.RepaintManager.paint(RepaintManager.java:1333)
    at java.desktop/javax.swing.JComponent._paintImmediately(JComponent.java:5211)
    at java.desktop/javax.swing.JComponent.paintImmediately(JComponent.java:5021)
    at java.desktop/javax.swing.RepaintManager$4.run(RepaintManager.java:868)
    at java.desktop/javax.swing.RepaintManager$4.run(RepaintManager.java:851)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:851)
    at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:826)
    at java.desktop/javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:775)
    at java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1901)
    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.dispatchEvent(IdeEventQueue.java:419)
    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.pumpEventsForFilter(EventdispatchThread.java:117)
    at java.desktop/java.awt.WaitdispatchSupport$2.run(WaitdispatchSupport.java:190)
    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.dispatchEvent(IdeEventQueue.java:419)
    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)

-----
JRE 11.0.8+10-b944.6842174 amd64 by N/A
C:\Users\alwe9\AppData\Local\JetBrains\ToolBox\apps\AndroidStudio\ch-0\202.7351085\jre

解决方法

我可以解决这个问题。它自己修复，第二天重启