安装运行flutter应用报错 ，请问是什么原因 ？ 原来还好好的
Launching lib/main.dart on AOSP on HammerHead in debug mode...
Initializing gradle...
Resolving dependencies...
Running Gradle task 'assembleDebug'...
Built build/app/outputs/apk/debug/app-debug.apk.
Installing build/app/outputs/apk/app.apk...
Error: ADB exited with exit code -15
Error launching application on AOSP on HammerHead.
Launching lib/main.dart on AOSP on HammerHead in debug mode...
Initializing gradle...
Resolving dependencies...
Running Gradle task 'assembleDebug'...
Built build/app/outputs/apk/debug/app-debug.apk.
Installing build/app/outputs/apk/app.apk...
Error: ADB exited with exit code -15
Error launching application on AOSP on HammerHead.
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