无法运行应用程序 . 该应用程序成功编译但崩溃与此异常
FATAL EXCEPTION:main进程:com.example.myapplication,PID:15209 java.lang.RuntimeException:无法实例化活动ComponentInfo {com.example.myapplication / com.example.myapplication.MainActivity}:java.lang.ClassNotFoundException:Didn在路径上找不到类“com.example.myapplication.MainActivity”:DexPathList [[zip file“/data/app/com.example.myapplication-2/base.apk"],nativeLibraryDirectories=[/vendor/lib,/ android.app.A活动中的android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2426)上的android.app.A活动 . 活动(活动传播:积累:246),android.app.ActivityThread.access $ 800(ActivityThread.java:178) )android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1470)在android.os.Handler.dispatchMessage(Handler.java:111)在android.os.Looper.loop(Looper.java:194)在android .app.ActivityThread.main(ActivityThread.java:5637)位于com.的java.lang.reflect.Method.invoke(Method.java:372)的java.lang.reflect.Method.invoke(Native Method)中 . android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:960)at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)引起:java.lang.ClassNotFoundException:未找到路径上的类“com.example.myapplication.MainActivity”:DexPathList [[zip file“/ data com.example.myapplication-2 / base.apk”],nativeLibraryDirectories = [/ vendor / lib,/ system / lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56),位于java.lang.ClassLoader.loadClass(ClassLoader.java:511),位于android.app.Instrumentation的java.lang.ClassLoader.loadClass(ClassLoader.java:469) .newActivity(Instrumentation.java:1071)在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)的android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2601)android.app.ActivityThread.access $ 800(ActivityThread) .java:178)在Android.os.Loope的android.app.A.运行时,Android.app.A.运行时,运行android.app.A.运行时,运行Android.os.Handler.dispatchMessage(Handler.java:111)的android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1470) r.loop(Looper.java:194)位于java.lang.reflect.Method.invoke的java.lang.reflect.Method.invoke(Native Method)的android.app.ActivityThread.main(ActivityThread.java:5637)在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)的com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:960)中的Method.java:372)抑制:java . lang.ClassNotFoundException:java.lang.Class.classForName(Native Method)中的com.example.myapplication.MainActivity,java.lang.BootClassLoader.findClass(ClassLoader.java:781),位于java.lang.BootClassLoader.loadClass(ClassLoader.java) :841)在java.lang.ClassLoader.loadClass(ClassLoader.java:504)... 13更多引起:java.lang.NoClassDefFoundError:使用引导类加载器找不到类;没有堆栈可用
Here is my android manifest.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myapplication">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
MainActivity
package com.example.myapplication;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ImageView;
import android.view.View;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
And my gradle,builds
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "com.example.myapplication"
minSdkVersion 15
targetSdkVersion 24
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:24.2.0'
}
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.1.3'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
这是我的第一次经历 . 我做了几个没有任何错误的项目 . 我也试过REBUILD和CLEAN . 我在stackOverflow中尝试了这些帖子 . 但没用
1 回答
有同样的问题 . 我的adb设备中安装了应用程序的内置版本 . 卸载内置版本后,应用程序开始运行没有任何问题