Didn't find class on path: DexPathList?
My app is working fine when I test in real device using USB in android studio.But When I send the apk to another device and install there,it is not working.App get crashed.I did not find any right way to solve the problem.Errors are given below:
FATAL EXCEPTION: main Process: com.w3xplorers.cmch,PID: 17715 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.w3xplorers.cmch/com.w3xplorers.cmch.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.w3xplorers.cmch.MainActivity" on path: DexPathList[[zip file "/data/app/com.w3xplorers.cmch-1/base.apk"],nativeLibraryDirectories=[/data/app/com.w3xplorers.cmch-1/lib/arm, /system/lib, /vendor/lib, system/vendor/lib, system/vendor/lib/egl, system/lib/hw]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2395)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2544)
at android.app.ActivityThread.access$900(ActivityThread.java:150)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1394)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:168)
at android.app.ActivityThread.main(ActivityThread.java:5845)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:797)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.w3xplorers.cmch.MainActivity" on path: DexPathList[[zip file "/data/app/com.w3xplorers.cmch-1/base.apk"],nativeLibraryDirectories=[/data/app/com.w3xplorers.cmch-1/lib/arm, /system/lib, /vendor/lib, system/vendor/lib, system/vendor/lib/egl, system/lib/hw]]
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:1085)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2385)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2544)
at android.app.ActivityThread.access$900(ActivityThread.java:150)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1394)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:168)
at android.app.ActivityThread.main(ActivityThread.java:5845)
at java.lang.reflect.Method.invoke(Native Method)
atcom.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687) Suppressed: java.lang.ClassNotFoundException: com.w3xplorers.cmch.MainActivity
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504) ... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
My Manifests is below:
`<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.w3xplorers.cmch">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.SEND_SMS" />
<application
android:name="com.w3xplorers.cmch.EnableMultiDex"
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="com.w3xplorers.cmch.MainActivity"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.w3xplorers.cmch.HomeActivity"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name="com.w3xplorers.cmch.QuickSms"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name="com.w3xplorers.cmch.GroupSms"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name="com.w3xplorers.cmch.SelfSms"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name="com.w3xplorers.cmch.Contact"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name="com.w3xplorers.cmch.Favourite"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name="com.w3xplorers.cmch.Info"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<activity android:name="com.w3xplorers.cmch.Dialog" />
</application>
</manifest>`
Gradle below:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.w3xplorers.cmch"
minSdkVersion 13
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2',
{
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.0'
compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha5'
compile 'com.android.support:design:25.3.0'
compile 'com.andreabaccega:android-form-edittext:1.0.3'
compile 'com.android.volley:volley:1.0.0'
compile 'com.squareup.okhttp3:okhttp:3.3.1'
compile 'com.android.support:multidex:1.0.1'
testCompile 'junit:junit:4.12'
}
Answer
I had to enable Java 8 Support after updating to Android Studio 3.5
Add the following lines in your build.gradle file:
android {
defaultConfig {
...
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
You can check the documentation here: https://developer.android.com/studio/write/java8-support