我制作了一个具有网络视图的简单应用程序，并将其发布到Playstore-一切正常。最近，我更新了webview的ip，更改了版本代码，生成了签名的apk并重新上传到playstore。但是，当我下载它进行测试时，它崩溃了。
08-21 03:48:34.916 926-4059/? I/ActivityManager: START u0
{act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER]
flg=0x10000000 pkg=com.rayzor536.appointments
cmp=com.rayzor536.appointments/.MainActivity} from uid 10039
08-21 03:48:34.995 926-4061/? I/ActivityManager: Start proc 703
4:com.rayzor536.appointments/u0a137 for activity
com.rayzor536.appointments/.MainActivity
08-21 03:48:35.149 7034-7034/? I/zygote: Rejecting re-init on previously-failed class java.lang.Class<com.rayzor536.appointments.MainActivity>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/app/AppCompatActivity;
08-21 03:48:35.149 7034-7034/? I/zygote: Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.app.AppCompatActivity" on path: DexPathList[[zip file "/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/base.apk"],nativeLibraryDirectories=[/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/lib/arm, /system/lib, /system/vendor/lib]]
08-21 03:48:35.152 7034-7034/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.rayzor536.appointments, PID: 7034
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.rayzor536.appointments/com.rayzor536.appointments.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.rayzor536.appointments.MainActivity" on path: DexPathList[[zip file "/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/base.apk"],nativeLibraryDirectories=[/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/lib/arm, /system/lib, /system/vendor/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2680)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2857)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1590)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6499)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.rayzor536.appointments.MainActivity" on path: DexPathList[[zip file "/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/base.apk"],nativeLibraryDirectories=[/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/lib/arm, /system/lib, /system/vendor/lib]]
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:2670)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2857)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1590)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6499)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Suppressed: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/app/AppCompatActivity;
at java.lang.VMClassLoader.findLoadedClass(Native Method)
at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:738)
at java.lang.ClassLoader.loadClass(ClassLoader.java:363)
... 12 more
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.app.AppCompatActivity" on path: DexPathList[[zip file "/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/base.apk"],nativeLibraryDirectories=[/data/app/com.rayzor536.appointments-ijS7lUJ8dmD9B9er-lMpYw==/lib/arm, /system/lib, /system/vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:125)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
... 15 more
08-21 03:48:35.157 926-5481/? W/ActivityManager: Force finishing activity com.rayzor536.appointments/.MainActivity
08-21 03:48:35.173 926-1066/? I/ActivityManager: Showing crash dialog for package com.rayzor536.appointments u0
08-21 03:48:35.662 926-1065/? W/ActivityManager: Activity pause timeout for ActivityRecord{6e9e3f1 u0 com.rayzor536.appointments/.MainActivity t1469 f}
08-21 03:48:35.895 926-1416/? I/WindowManager: Failed to capture screenshot of Token{26fabd6 ActivityRecord{6e9e3f1 u0 com.rayzor536.appointments/.MainActivity t1469 f}} appWin=Window{313f14f u0 Splash Screen com.rayzor536.appointments EXITING} drawState=4
08-21 03:48:42.402 926-5481/? W/ActivityManager: Force finishing activity com.rayzor536.appointments/.MainActivity
08-21 03:48:42.404 926-5481/? I/ActivityManager: Killing 7034:com.rayzor536.appointments/u0a137 (adj 900): crash
我的gradle文件如下：
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.rayzor536.appointments"
minSdkVersion 23
targetSdkVersion 27
versionCode 3
versionName "1.0.2"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
buildTypes {
release {
postprocessing {
removeUnusedCode false
removeUnusedResources false
obfuscate false
optimizeCode false
proguardFile 'proguard-rules.pro'
}
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
compile 'com.android.support:multidex:1.0.3'
}
这是我的应用清单：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rayzor536.appointments">
<uses-permission android:name="android.permission.INTERNET"/>
<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"
android:name="android.support.multidex.MultiDexApplication">
<activity android:name="com.rayzor536.appointments.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
答案 0 :(得分：0)
错误行 找不到类“ com.rayzor536.appointments.MainActivity” 说您在某个地方弄乱了android manifest.xml文件 更改版本代码后，请再次检查清单文件是否良好。