Retrofit: NoClassDefFoundError on Android 4.1.2

Created on 26 Feb 2016 · 14Comments · Source: square/retrofit

Hi, everybody.
I write because I have encountered a problem while using the retrofit2 library on Samsung Galaxy S2 (Android 4.1.2).
While performing any network request, the application dies with the following stack trace:

java.lang.ExceptionInInitializerError at com.vwgroup.audiservice.bolts.TaskManager.registrationTask(TaskManager.java:41) at com.vwgroup.audiservice.ui.activity.ImbServiceTest.performNetworkrequest(ImbServiceTest.java:49) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at android.support.test.internal.statement.UiThreadStatement.evaluate(UiThreadStatement.java:55) at android.support.test.rule.ActivityTestRule$ActivityStatement.evaluate(ActivityTestRule.java:257) at org.junit.rules.RunRules.evaluate(RunRules.java:20) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runners.Suite.runChild(Suite.java:128) at org.junit.runners.Suite.runChild(Suite.java:27) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at org.junit.runner.JUnitCore.run(JUnitCore.java:115) at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:54) at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:240) at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1619) Caused by: java.lang.NoClassDefFoundError: retrofit2.Retrofit$Builder at com.vwgroup.audiservice.network.ServiceGenerator.(ServiceGenerator.java:24) ... 33 more

The same code run without any issue on Android 5.0, 5.1, 6

My Gradle dependencies are as follows:

compile ('com.squareup.retrofit2:retrofit:2.0.0-beta4'){ exclude group: 'com.android.support' } compile ('com.squareup.retrofit2:converter-gson:2.0.0-beta4'){ exclude group: 'com.android.support' } compile ('com.squareup.retrofit2:converter-simplexml:2.0.0-beta4'){ exclude module: 'xpp3' exclude module: 'stax' exclude module: 'stax-api' exclude group: 'com.android.support' } compile 'com.squareup.okhttp:okhttp:2.7.4'

Any help will be appreciated.

thanks

Source

morningstar84

Most helpful comment

Ya, Exactly multiDexEnabled true is the problem here. Instead of remove it, you can add make your application extends android.support.multidex.MultiDexApplication, dependence is
dependencies {
compile 'com.android.support:multidex:1.0.0'
}
So, To me, This is how I solve problem :)

at-longcb on 16 Mar 2016

👍7

All 14 comments

today i got same error after update to version:

compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'
compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'

previously i was using version :

compile 'com.squareup.retrofit2:retrofit:2.0.0-beta2'
compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta2'

and everything running well.

error :

Could not find class 'retrofit2.Retrofit$Builder'

code :

Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("http://myserver.com")
    .addConverterFactory(GsonConverterFactory.create())
    build();

ghost on 26 Feb 2016

I got same error using the beta4 version :
dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4' compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4' }

And my ServiceGenerator :
`public class ServiceGenerator {

public static final String API_BASE_URL = "http://my_url.com";

private static Retrofit.Builder builder =
        new Retrofit.Builder()
                .baseUrl(API_BASE_URL)
                .addConverterFactory(GsonConverterFactory.create());

/**
 * Instanciate Service
 * @param serviceClass
 */
public static <S> S createService(Class<S> serviceClass) {
    Retrofit retrofit = builder.build();
    return retrofit.create(serviceClass);
}

}
`

and i got this error :

Caused by: java.lang.NoClassDefFoundError: retrofit2.Retrofit$Builder at com.wasten.service.ServiceGenerator.<clinit>(ServiceGenerator.java:13) at com.wasten.activity.child.UserListActivity.getUserListData(UserListActivity.java:84) at com.wasten.activity.child.UserListActivity.onCreate(UserListActivity.java:54) at android.app.Activity.performCreate(Activity.java:5047) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2056) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2117) at android.app.ActivityThread.access$700(ActivityThread.java:134) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1218) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4867) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1007) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:774) at dalvik.system.NativeStart.main(Native Method)

hbenslama on 27 Feb 2016

Do you guys use multidex? If so, make sure that in the Application.attachBaseContext() you're initializing it correctly.

artem-zinnatullin on 27 Feb 2016

yup, i'm using multiDexEnabled true,
would you like to show the snippet?

ghost on 27 Feb 2016

Yes, I used multiDexEnabled true too :-)

morningstar84 on 27 Feb 2016

Yes, I used multiDexEnabled true too, but i don't think that this is the cause of the problem,
I have invalidate Cache using Android Studio,
I have deleted the cache gradle using Terminal ..
But i have always the problem,
im using Android 4.1.2 and retrofit2.

i got always :
Caused by: java.lang.NoClassDefFoundError: retrofit2.Retrofit$Builder at ....

hbenslama on 27 Feb 2016

Use either MultidexApplication or initialize it manually.

Here is documentation http://developer.android.com/tools/building/multidex.html

artem-zinnatullin on 27 Feb 2016

today, i have created new simple app using retrofit2 beta4 and used multiDexEnabled true. But the error not appear. my app running well.
But my other app using retrofit2 beta4 and multiDexEnabled true still error.

ghost on 28 Feb 2016

Hi Guys,

I solved my problem by changing one library in gradle,
the cause of this exception isn't retrofit2-beta4, but another library that use an older version of retrofit, so that create the conflict in the classpath during runtime.

retrofit solved the conflict problem by renaming package to retrofit2.

@PaijoRX can u paste here all your dependancies that you use in Gradle please ?

hbenslama on 28 Feb 2016

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion '23.0.2'

    defaultConfig {
        applicationId "com.simp.ams"
        minSdkVersion 19
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:recyclerview-v7:23.1.1'
    compile project(':swiperefreshlayoutlibrary')
    compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'
    compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'
    compile 'com.android.support:design:23.1.1'
    compile 'com.google.android.gms:play-services:8.4.0'
}

ghost on 28 Feb 2016

finally i solved my error.
remove multiDexEnabled true from gradle and replace compile 'com.google.android.gms:play-services:8.4.0' whit specific depedencies i used ('com.google.android.gms:play-services-location:8.4.0').

ghost on 28 Feb 2016

👍1

Closing since this was determined to be a build system problem and not a Retrofit bug.

JakeWharton on 28 Feb 2016

at-longcb on 16 Mar 2016

👍7

at-longcb commented on 16 Mar 2016

I tried removing " multiDexEnabled true" ,
tried adding compile 'com.android.support:multidex:1.0.0'

# But Finally I fixed this issue by extending my base Application class
by _public class MyApplication extends MultiDexApplication { ... }_

Updated retrofit lib from 1.9.0 -to - :2.2.0'

dependencies {
........
compile 'com.squareup.retrofit2:retrofit:2.2.0'
compile 'com.squareup.retrofit2:converter-gson:2.2.0'
compile 'com.android.support:multidex:1.0.1'
}

defaultConfig {
.......
multiDexEnabled true
}

Please Check this link to know more about multidex enable