在启动时

Question

这里Android的崩溃是我的代码，同时具有即时运行启用

AndroidManifest.xml中

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.alondra.positive1"> 

    <application 
     android:allowBackup="true" 
     android:icon="@mipmap/ic_launcher" 
     android:label="@string/app_name" 
     android:roundIcon="@mipmap/ic_launcher_round" 
     android:supportsRtl="true" 
     android:theme="@style/AppTheme"> 
     <activity android:name=".LoginActivity"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity android:name=".RegisterActivity" /> 
     <activity android:name=".MainActivity"/> 
    </application> 

</manifest> 

堆栈跟踪

05-03 04:47:23.906 6489-6489/com.example.alondra.positive1 E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.alondra.positive1, PID: 6489 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.alondra.positive1/com.example.alondra.positive1.LoginActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.alondra.positive1.LoginActivity" on path: DexPathList[[zip file "/data/app/com.example.alondra.positive1-2/base.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/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:5254) 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) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.alondra.positive1.LoginActivity" on path: DexPathList[[zip file "/data/app/com.example.alondra.positive1-2/base.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/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.newActivity(Instrumentation.java:1066) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2226) 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:5254) 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) Suppressed: java.lang.NoClassDefFoundError: com.example.alondra.positive1.LoginActivity at dalvik.system.DexFile.defineClassNative(Native Method) at dalvik.system.DexFile.defineClass(DexFile.java:226) at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219) at dalvik.system.DexPathList.findClass(DexPathList.java:321) at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54) ... 14 more Suppressed: java.io.IOException: Failed to open dex file '/data/app/com.example.alondra.posit

，并禁用它

后

05-03 08:37:18.568 14647-14647/? E/libprocessgroup: failed to make and chown /acct/uid_10059: Read-only file system 05-03 08:37:18.568 14647-14647/? W/Zygote: createProcessGroup failed, kernel missing CONFIG_CGROUP_CPUACCT? 05-03 08:37:18.569 14647-14647/? I/art: Not late-enabling -Xcheck:jni (already on) 05-03 08:37:18.677 14647-14647/com.example.alondra.positive1 I/InstantRun: starting instant run server: is main process 05-03 08:37:18.679 14647-14647/com.example.alondra.positive1 I/art: Rejecting re-init on previously-failed class java.lang.Class 05-03 08:37:18.679 14647-14647/com.example.alondra.positive1 D/AndroidRuntime: Shutting down VM 05-03 08:37:18.681 14647-14647/com.example.alondra.positive1 E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.alondra.positive1, PID: 14647 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.alondra.positive1/com.example.alondra.positive1.LoginActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.alondra.positive1.LoginActivity" on path: DexPathList[[zip file "/data/app/com.example.alondra.positive1-2/base.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/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:5254) 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) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.alondra.positive1.LoginActivity" on path: DexPathList[[zip file "/data/app/com.example.alondra.positive1-2/base.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.alondra.positive1-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/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.newActivity(Instrumentation.java:1066) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2226) 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:5254)  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)  Suppressed: java.lang.NoClassDefFoundError: com.example.alondra.positive1.LoginActivity at dalvik.system.DexFile.defineClassNative(Native Method) at dalvik.system.DexFile.defineClass(DexFile.java:226) at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219) at dalvik.system.DexPathList.findClass(DexPathList.java:321) at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54) ... 14 more Suppressed: java.io.IOException: Failed to open dex file '/data/app/com.example.alondra.posi 05-03 08:37:22.100 14647-14647/? I/Process: Sending signal. PID: 14647 SIG: 9

如果你需要我张贴代码请注明发布什么样的代码，因为我有5 Java和XML 3所以这将是一个有点乏味

Answer 1

您已声明中体现你的活动？ 请检查您的清单文件，如果LoginActivity声明或不。如果不是请在清单中声明您的活动，然后再试一次。 谢谢。