创建Android模拟器及ADB设备配对失败问题求助

问题概述 #

• 创建ADB模拟器、设备与电脑配对时触发java.lang.NullPointerException
• 相关程序安装在D盘（非默认C盘），怀疑是问题诱因
• 执行flutter doctor检测结果显示正常

错误日志 #

java.lang.NullPointerException
    at com.android.tools.idea.devicemanager.virtualtab.BuildVirtualDeviceConfigurationWizardActionListener.actionPerformed(BuildVirtualDeviceConfigurationWizardActionListener.java:45)
    at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967)
    at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2308)
    at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
    at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
    at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:270)
    at java.desktop/java.awt.Component.processMouseEvent(Component.java:6654)
    at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3345)
    at java.desktop/java.awt.Component.processEvent(Component.java:6419)
    at java.desktop/java.awt.Container.processEvent(Container.java:2263)
    at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5029)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4861)
    at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918)
    at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4547)
    at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307)
    at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2793)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4861)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:778)
    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.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:751)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:749)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:748)
    at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:898)
    at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.java:820)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:743)
    at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$6(IdeEventQueue.java:439)
    at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:803)
    at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$7(IdeEventQueue.java:438)
    at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:119)
    at com.intellij.ide.IdeEventQueue.performActivity(IdeEventQueue.java:604)
    at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:436)
    at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:873)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:484)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)

解决方案 #

1. 校验环境变量配置 #

• 确认ANDROID_HOME环境变量指向D盘的Android SDK根目录，路径中禁止包含中文、空格或特殊字符
• 将%ANDROID_HOME%\platform-tools和%ANDROID_HOME%\tools添加到系统PATH变量中
• 验证：打开命令行执行adb version，若能正常输出版本信息则配置有效

2. 修复Android Studio SDK路径 #

• 打开Android Studio，进入File > Settings > Appearance & Behavior > System Settings > Android SDK
• 确认SDK路径设置为D盘的安装目录，点击Apply后重启IDE

3. 清理缓存与重建配置 #

• 清除IDE缓存：File > Invalidate Caches...，选择Invalidate and Restart
• 删除旧模拟器配置：找到D盘Android SDK下的.android/avd目录，删除对应模拟器的文件夹后重新创建

4. 解决权限问题 #

• 右键以管理员身份运行Android Studio，避免D盘目录权限不足导致文件读取失败
• 右键D盘Android SDK目录，选择属性 > 安全，确保当前用户拥有完全控制权限

5. 切换IDE版本 #

• 该空指针异常可能是特定版本Android Studio的bug，尝试切换到稳定版（如Arctic Fox、Bumblebee）或更新至最新版本

内容的提问来源于stack exchange，提问作者Pedro Henrique Cesar