java.lang.ClassNotFoundException: Didn't find class "XXX.MainActivity" on path: DexPathList[...

约定不等于承诺〃 2022-05-10 14:20 210阅读 0赞

![在这里插入图片描述][70]

10-19 10:19:27.194 31597-31597/com.t.testdemo.myapplication E/AndroidRuntime: FATAL EXCEPTION: main
        Process: com.t.testdemo.myapplication, PID: 31597
        java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.t.testdemo.myapplication/com.t.testdemo.myapplication.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.t.testdemo.myapplication.MainActivity" on path: DexPathList[[zip file "/data/app/com.t.testdemo.myapplication-2YZBPHmPugJdFOpwEIAbyw==/base.apk"],nativeLibraryDirectories=[/data/app/com.t.testdemo.myapplication-2YZBPHmPugJdFOpwEIAbyw==/lib/arm64, /system/lib64, /vendor/lib64]]
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2901)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3078)
            at android.app.ActivityThread.-wrap11(Unknown Source:0)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
            at android.os.Handler.dispatchMessage(Handler.java:106)
            at android.os.Looper.loop(Looper.java:183)
            at android.app.ActivityThread.main(ActivityThread.java:7014)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:514)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:888)
         Caused by: java.lang.ClassNotFoundException: Didn't find class "com.t.testdemo.myapplication.MainActivity" on path: DexPathList[[zip file "/data/app/com.t.testdemo.myapplication-2YZBPHmPugJdFOpwEIAbyw==/base.apk"],nativeLibraryDirectories=[/data/app/com.t.testdemo.myapplication-2YZBPHmPugJdFOpwEIAbyw==/lib/arm64, /system/lib64, /vendor/lib64]]
            at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:125)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
            at android.app.Instrumentation.newActivity(Instrumentation.java:1174)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2891)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3078) 
            at android.app.ActivityThread.-wrap11(Unknown Source:0) 
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 
            at android.os.Handler.dispatchMessage(Handler.java:106) 
            at android.os.Looper.loop(Looper.java:183) 
            at android.app.ActivityThread.main(ActivityThread.java:7014) 
            at java.lang.reflect.Method.invoke(Native Method) 
            at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:514) 
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:888)

<table> 
 <thead> 
  <tr> 
   <th align="left"></th> 
   <th align="left"></th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">开发工具</td> 
   <td align="left">Android Studio 3.1.4</td> 
  </tr> 
  <tr> 
   <td align="left">测试机</td> 
   <td align="left">oppo R15</td> 
  </tr> 
  <tr> 
   <td align="left">Gradle</td> 
   <td align="left">4.4</td> 
  </tr> 
  <tr> 
   <td align="left">Android Pulgin Version</td> 
   <td align="left">3.1.4</td> 
  </tr> 
  <tr> 
   <td align="left">compileSdkVersion</td> 
   <td align="left">28</td> 
  </tr> 
 </tbody> 
</table>

File ->New Project，然后一路next。然后Run(Shift+F10)一下：

现象就是安装Apk后不起来，点击闪退；卸载重试，继续崩溃；clean后闪退依旧；改compileSdkVersion为26，也没卵用；Invalidate and Restart，再试最后一把，继续闪退。

我也要崩溃了，默哀20秒，换个的小米手机试试吧，艾玛，竟然可以运行，**说明项目没问题**。垃圾手机误国啊！该死的oppo R15。

奈何最近冤假错案太多了。为了不冤枉oppo，决定换台同事电脑试试，我去，**同一套代码，在同事电脑运行到oppo R15上竟不崩溃**。就像从来没有崩溃过一样，岁月静好。

莫非是我的电脑和oppo R15手机八字不合？

谷歌一把：

![在这里插入图片描述][70 1]

把上面对勾去掉，Apply OK一下，再运行，果然不会崩溃了。

### 结论： ###

OPPO R15 不支持Instant Run。

[70]: /images/20220505/cd855cd42a574c8a87eddc4a1c71e664.png
[70 1]: /images/20220505/f711a7d3f00b4154afd0bda533fe7819.png