事件原委：

給測(cè)試發(fā)了程序，反饋裝上就閃退，我這邊裝的沒(méi)事，又發(fā)了一次，測(cè)試還是反饋閃退，心中一萬(wàn)個(gè)。。。

把發(fā)給測(cè)試的程序通過(guò)adb來(lái)安裝，發(fā)現(xiàn)確實(shí)閃退，通過(guò)android ?studio ?安裝沒(méi)有問(wèn)題，這你妹的。。。

錯(cuò)誤信息：

FATAL EXCEPTION: main
Process: com.example, PID: 21084
java.lang.RuntimeException: Unable to instantiate application com.example.MyApp: java.lang.ClassNotFoundException: Didn't find class "com.example.MyApp" on path: DexPathList[[zip file "/data/app/com.example-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example-1/lib/arm, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:676)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6289)
at android.app.ActivityThread.access$1800(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.MyApp" on path: DexPathList[[zip file "/data/app/com.example-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example-1/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newApplication(Instrumentation.java:1004)
at android.app.LoadedApk.makeApplication(LoadedApk.java:666)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6289)?
at android.app.ActivityThread.access$1800(ActivityThread.java:221)?
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860)?
at android.os.Handler.dispatchMessage(Handler.java:102)?
at android.os.Looper.loop(Looper.java:158)?
at android.app.ActivityThread.main(ActivityThread.java:7224)?
at java.lang.reflect.Method.invoke(Native Method)?
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)?
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)?
Suppressed: java.lang.ClassNotFoundException: com.example.MyApp
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
? ? ? ? ... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

把依賴庫(kù)、各種clean、rebuild不行。百度查出來(lái)的跟問(wèn)題的相關(guān)性也不大，最后在stackoverflow上找到了解決辦法：

Android Studio->Preferences->Instant Run, uncheck "Enable Instance Run"

將Enable Instance Run ?復(fù)選框去掉勾選

修改后好了，折騰了一天，之前發(fā)程序也沒(méi)出問(wèn)題，具體什么問(wèn)題，沒(méi)有時(shí)間再深入去探究，先記錄下如何修改應(yīng)急！！！

真TM坑

附上鏈接：

https://stackoverflow.com/questions/43273878/unable-to-instantiate-application-java-lang-classnotfoundexception
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版權(quán)聲明：本文為CSDN博主「Hare_」的原創(chuàng)文章，遵循 CC 4.0 BY-SA 版權(quán)協(xié)議，轉(zhuǎn)載請(qǐng)附上原文出處鏈接及本聲明。
原文鏈接：https://blog.csdn.net/hjq2013/article/details/78363964

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