Ta的回复 ：您好群主，git上下下来后，运行testAgular的代码，无法运行apk啊。请回复一下。是不是少东西？ FATAL EXCEPTION: main Process: com.zhijiaiot.app, PID: 20123 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.zhijiaiot.app/com.zhijiaiot.app.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.zhijiaiot.app.MainActivity" on path: DexPathList[[zip file "/data/app/com.zhijiaiot.app-2/base.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_2_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_3_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_4_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_5_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_6_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_7_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_8_apk.apk", zip file "/data/app/com.zhijiaiot.app-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.zhijiaiot.app-2/lib/arm, /vendor/lib, /system/lib]] at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2236) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at android.app.ActivityThread.access$800(ActivityThread.java:151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5258) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)