javaandroidclassnotfoundexception
Unable to instantiate activity Component Info Class Not found exception Android
My app is deployed directly to any device without any exception. But when .apk is installed it throws the following exception. Secondly it runs fine with Nougat 7.0 and above versions but crashes with same exception for lower OS Versions like 5.0 and 6.0. etc. What is the reason for exception ?
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="amitechnologies.products.apps.equalizeraudioplayer.v3" >
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.BATTERY_STATS" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name="amitechnologies.products.apps.equalizeraudioplayer.v3.view.LoaderOfAllMediaFiles"
android:label="@string/app_name"
android:configChanges="keyboard|keyboardHidden|orientation|screenSize" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="amitechnologies.products.apps.equalizeraudioplayer.v3.view.MainActivity"
android:screenOrientation="sensorPortrait"
android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
android:label="@string/app_name" >
</activity>
</application>
</manifest>
Build.gradle:
apply plugin: 'com.android.application'
android {
signingConfigs {
config {
keyAlias 'm-zaes'
keyPassword 'm-zaes'
storeFile file('D:/AMI_Repo/AMI_Designer/Targets/Android/AMI 3d Player v3/keystore.jks')
storePassword 'm-zaes'
}
}
compileSdkVersion 25
buildToolsVersion "25.0.1"
useLibrary 'org.apache.http.legacy'
defaultConfig {
applicationId "amitechnologies.products.apps.equalizeraudioplayer.v3"
minSdkVersion 17
targetSdkVersion 25
versionCode 1
versionName "1.1"
signingConfig signingConfigs.config
// Enabling multidex support.
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFile 'D:/AMI_Repo/AMI_Designer/Targets/Android/AMI 3d Player v3/app/proguard-android.txt'
signingConfig signingConfigs.config
}
}
sourceSets {
main {
jniLibs.srcDir 'jniLibs'
}
}
repositories {
maven { url "https://jitpack.io" }
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.google.android.gms:play-services-ads:10.2.4'
compile 'com.google.apis:google-api-services-youtube:v3-rev180-1.22.0'
compile 'com.android.support:multidex:1.0.1'
//glide
compile 'com.github.bumptech.glide:glide:3.7.0'
// CardView
compile 'com.android.support:cardview-v7:25.3.1'
}
productFlavors {
}
}
dependencies {
}
and Stack trace is
Process: amitechnologies.products.apps.equalizeraudioplayer.v3, PID: 15548
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{amitechnologies.products.apps.equalizeraudioplayer.v3/amitechnologies.products.apps.equalizeraudioplayer.v3.view.LoaderOfAllMediaFiles}: java.lang.ClassNotFoundException: Didn't find class "amitechnologies.products.apps.equalizeraudioplayer.v3.view.LoaderOfAllMediaFiles" on path: DexPathList[[zip file "/data/app/amitechnologies.products.apps.equalizeraudioplayer.v3-1/base.apk"],nativeLibraryDirectories=[/data/app/amitechnologies.products.apps.equalizeraudioplayer.v3-1/lib/arm, /vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2395)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2564)
at android.app.ActivityThread.access$800(ActivityThread.java:170)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1441)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5576)
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:955)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:750)
Caused by: java.lang.ClassNotFoundException: Didn't find class "amitechnologies.products.apps.equalizeraudioplayer.v3.view.LoaderOfAllMediaFiles" on path: DexPathList[[zip file "/data/app/amitechnologies.products.apps.equalizeraudioplayer.v3-1/base.apk"],nativeLibraryDirectories=[/data/app/amitechnologies.products.apps.equalizeraudioplayer.v3-1/lib/arm, /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:1070)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2385)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2564)
at android.app.ActivityThread.access$800(ActivityThread.java:170)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1441)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5576)
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:955)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:750)
Suppressed: java.lang.ClassNotFoundException: amitechnologies.products.apps.equalizeraudioplayer.v3.view.LoaderOfAllMediaFiles
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)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
and Folder Structure:
Solution
As Discussion in chat i found that, Your manual way of generating APK is not generating the correct APK, so i am Suggesting these way to generating APK for Manual Install:
For Debug Build
- Delete you build folder inside the App folder.
- Goto
Build>Build APk. it will generate .apk file in yourapp>build>output>apkdirectory. - COPY it your device and install manually.
For Release Build
- Delete you build folder inside the App folder.
- Goto
Build>Generate Signed APkand provide recomended Details, make sure yourBuild type : releaseand have checked both signature versionv1(jar signature)andv2(full apk signature). it will generate .apk file in yourapp>build>output>apkdirectory. - COPY it your device and install manually.
- Duplicate messages received if multiple subscription matches with incoming message
- How to share parameters between different gradle tasks
- Comprehensive (Intelligent) Date library
- Add a date to now by parsing the input
- How to create schema in Postgres DB, before liquibase start to work?
- How to run source code downloaded from github
- How to write hashCode method for a particular class?
- Open Another App with android.intent.action.VIEW
- Converting String Array to an Integer Array
- To include maven in dockerfile or not?
- Eclipse: changing runtime Ant Home results in error popup regarding missing tools.jar library
- apache camel simple expression not giving string value
- Android Java IOException read failed EBADF (Bad File Number) From File descriptor/Input Stream
- request.getheader("Authorization") returning null
- Spring Boot with JWT : Full authentication is required to access this resource
- Invoke compilers of different languages from within sts/eclipse
- Can Java compiler optimize adding to a set in recursive methods
- Spring AOP vs AspectJ
- error: cannot find symbol @RestController in Spring Boot on build
- How to make plots in Java like in Matlab (same syntax)
- Calling Java methods from C without starting the JVM from C
- Efficient Algorithm for Finding if the Numbers Represented by substrings of a Very Big Digit String are Divisible by 7
- CompletableFuture | thenApply vs thenCompose
- IntelliJ Unit Test Configuration fails with: "variable not initialized in the default constructor" Error When Using Lombok Annotation
- Getting next value from sequence with jpa repository in postgreSQL
- Fastest way to tell if a string is a valid date
- Does JavaFX CSS support variables for numeric values?
- How to calculate the median of an array?
- Unable capture the "success" state of the elements after form submission
- Saving view state Android while app restarted