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Java.lang.NoClassDefFoundError: okhttp3.OkHttpClient $ Builder

In my project, I used OkHttp (version 2.5.0) as my network request library. But a few days ago I tried Retrofit2 as part of my network application request library, as you know, the new dependency of the Retrofit2 library on OkHttp (version 3.2.0). So there is a problem when my application runs on an Android phone, whose android version under android 5.0 always causes a crash (the larger version works well and does not crash), information about the crash stack is displayed below:

04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: java.lang.NoClassDefFoundError: okhttp3.OkHttpClient$Builder 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at com.comingx.athit.client.ServiceGenerator.<clinit>(ServiceGenerator.java:22) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at com.comingx.athit.ui.fragments.CircleNativeFragment.onViewCreated(CircleNativeFragment.java:105) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1086) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:742) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:517) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.os.Handler.handleCallback(Handler.java:808) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.os.Handler.dispatchMessage(Handler.java:103) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.os.Looper.loop(Looper.java:193) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5348) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at java.lang.reflect.Method.invokeNative(Native Method) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at java.lang.reflect.Method.invoke(Method.java:515) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at dalvik.system.NativeStart.main(Native Method) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: java.lang.NoClassDefFoundError: okhttp3.OkHttpClient$Builder 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at com.comingx.athit.client.ServiceGenerator.<clinit>(ServiceGenerator.java:22) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at com.comingx.athit.ui.fragments.CircleNativeFragment.onViewCreated(CircleNativeFragment.java:105) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1086) 04-15 21:28:51.185 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:742) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:517) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at android.os.Handler.handleCallback(Handler.java:808) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at android.os.Handler.dispatchMessage(Handler.java:103) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at android.os.Looper.loop(Looper.java:193) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5348) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at java.lang.reflect.Method.invokeNative(Native Method) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at java.lang.reflect.Method.invoke(Method.java:515) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645) 04-15 21:28:51.186 17238-17238/com.comingx.athit W/System.err: at dalvik.system.NativeStart.main(Native Method)

From the stack trace, I think OkHttp (version 3.2.0) has some conflicts with OkHttp (version 2.5.0). Below I will give the configuration of my external library:

 compile 'com.squareup.okhttp:okhttp:2.5.0' compile 'com.squareup.okhttp3:okhttp:3.2.0' compile 'com.google.code.gson:gson:2.6.2' compile 'com.squareup.retrofit2:retrofit:2.0.1' compile 'com.squareup.retrofit2:converter-gson:2.0.1'

Hope someone who knows the problem can do me a favor! Thank you very much!

Update 1: Here is my ServiceGenerator.java :

 package com.comingx.athit.client; import com.comingx.athit.model.Constants; import com.comingx.athit.model.modelmanager.ModelManagerSingleton; import java.io.IOException; import okhttp3.Interceptor; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.Response; import retrofit2.Retrofit; import retrofit2.converter.gson.GsonConverterFactory; public class ServiceGenerator { private static OkHttpClient httpClient = new OkHttpClient.Builder().addInterceptor( new Interceptor() { @Override public Response intercept(Chain chain) throws IOException { Request request = chain.request() .newBuilder().addHeader("Cookie", ModelManagerSingleton.getNative_cookie()).build(); return chain.proceed(request); } } ).build(); private static Retrofit.Builder builder = new Retrofit.Builder() .baseUrl(Constants.V3.API_PREFIX) .addConverterFactory(GsonConverterFactory.create()); public static <T> T createService(Class<T> serviceClass) { Retrofit retrofit = builder.client(httpClient).build(); return retrofit.create(serviceClass); } }
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Yes, finally, I find the problem and solve it. I looked at a similar problem here and found that maybe 64K Methods can cause a problem, so I came to the official website to view the creation of applications using more than 64 thousand methods . You should now compile the multidex library in the build.gradle file:

 compile 'com.android.support:multidex:1.0.1'

And don't forget to configure your defaultConfig:

 android { defaultConfig { multiDexEnabled true } }

And finally, you can write BaseApplication for the Application extension, write the attachBaseContext (Context Base) method as follows:

  @Override protected void attachBaseContext(Context base) { super.attachBaseContext(base); MultiDex.install(this); }

Remember to add this to your AndroidManifest.xml file:

 <application android:name=".BaseApplication" android:allowBackup="true"> </application>
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Source: https://habr.com/ru/post/1238399/

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