Java.lang.noclassdeffounderror: Okhttp3.okhttpclient$builder

In my project, I have used OkHttp(version 2.5.0) as my network request library. But few days ago, I tried Retrofit2 as part of my app's network request library, as you know, the ne

Solution 1:

Yes, finally I find the problem and solve it. I viewed a similar problem here and find that maybe the 64K Methods could cause the problem, so I came to official site to view Building Apps with Over 64K Methods. Now you should compile the multidex library in your build.gradle file:

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

And don't forget to config your defaultConfig:

android {
  defaultConfig {
    multiDexEnabled true
  }
}

And finally you can write a BaseApplication extends to Application, over write the attachBaseContext(Context base) method as follows:

@OverrideprotectedvoidattachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }

Don't forget to add this to your AndroidManifest.xml file:

<applicationandroid:name=".BaseApplication"android:allowBackup="true"></application>