java.lang.ClassNotFoundException : dalvik.system.BaseDexClassLoader.findClass

Question

I'm continuously getting this error report in my Google Play developer console. It look like MultiDex error.

java.lang.RuntimeException: 
  at android.app.LoadedApk.makeApplication(LoadedApk.java:516)
  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4514)
  at android.app.ActivityThread.access$1500(ActivityThread.java:151)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1381)
  at android.os.Handler.dispatchMessage(Handler.java:110)
  at android.os.Looper.loop(Looper.java:193)
  at android.app.ActivityThread.main(ActivityThread.java:5299)
  at java.lang.reflect.Method.invokeNative(Native Method:0)
  at java.lang.reflect.Method.invoke(Method.java:515)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
  at dalvik.system.NativeStart.main(Native Method:0)

Caused by: java.lang.ClassNotFoundException: 
  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
  at android.app.Instrumentation.newApplication(Instrumentation.java:975)
  at android.app.LoadedApk.makeApplication(LoadedApk.java:511)

I already added this to gradle.build:

defaultConfig {
...
minSdkVersion 14
targetSdkVersion 21
...

// Enabling multidex support.
multiDexEnabled true
}

dependencies {
  compile 'com.android.support:multidex:1.0.0'
}

 @Override
    protected void attachBaseContext(Context newBase) {
        super.attachBaseContext(newBase);
        try {
            MultiDex.install(this);
        }catch (RuntimeException e){
            e.printStackTrace();
        }catch (Exception e){
            e.printStackTrace();
        }
    }

I'm still getting this error in android 4.4,5.0,5.1, 6.0. Please help !!

did you set android:name="android.support.multidex.MultiDexApplication" in application section — IntelliJ Amiya
– IntelliJ Amiya, Commented Jul 3, 2017 at 8:19
Has anyone tried using a debugger and adding a breakpoint here: ClassLoader.java:457 or here BaseDexClassLoader.java:56 to see what class it's trying to load and investigate if it's on the class path? — CausingUnderflowsEverywhere
– CausingUnderflowsEverywhere, Commented May 1, 2018 at 17:45
Same problem here. It is rare, but it has been happening periodically for a while. Most of the crashes are from Android 4.4, some are from Android 5.0, Very few are from Android 4.2, Android 5.1. — Hong
– Hong, Commented Sep 10, 2018 at 12:11

Anisuzzaman Babla · Accepted Answer · 2019-01-03 05:29:33Z

1

There are multiple variants of the java.lang.ClassNotFoundException in Android, most of them are caused by a wrong Proguard configuration, IDE not closing correctly the previous launched instance of the device during build time etc.

Follow Unexpected crash in BaseDexClassLoader for more details.

answered Jan 3, 2019 at 5:29

Anisuzzaman Babla

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Comments

Artem Kobelev · Accepted Answer · 2019-10-09 19:09:16Z

0

It might be because of conflict in dependencies (same class may exists in two libraries). So search for BaseDexClassLoader class in your dependencies.

answered Oct 9, 2019 at 19:09

Artem Kobelev

1

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