Could not use 'com.squareup.okhttp3:okhttp-urlconnection:3.0.0' (gradle)

I am building an Android app. When declaring these 2 dependencies:

    compile 'com.squareup.okhttp3:okhttp:3.0.0'
    compile 'com.squareup.okhttp3:okhttp-urlconnection:3.0.0'

my build fails with this error:

UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.DexException: Multiple dex files define Lokhttp3/Address;
        at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:579)
        at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:535)
        at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:517)
        at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:164)
        at com.android.dx.merge.DexMerger.merge(DexMerger.java:188)
        at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:504)
        at com.android.dx.command.dexer.Main.runMonoDex(Main.java:334)
        at com.android.dx.command.dexer.Main.run(Main.java:277)
        at com.android.dx.command.dexer.Main.main(Main.java:245)
        at com.android.dx.command.Main.main(Main.java:106)

When looking at okhttp-urlconnection.jar I was surprised to see this class indeed present inside. I am not sure if this is normal.

I tried to be clever and declare instead these dependencies:

//    compile 'com.squareup.okhttp3:okhttp:3.0.0'
    compile ('com.squareup.okhttp3:okhttp-urlconnection:3.0.0') { exclude group: 'com.squareup.okhttp3' }

(notice the first declaration is commented out)

Now the build succeeds. But my app fails at runtime, with this exception:

java.lang.NoClassDefFoundError: Failed resolution of: Lokhttp3/internal/tls/OkHostnameVerifier;
                                                                                            at okhttp3.OkHttpClient$Builder.<init>(OkHttpClient.java:340)
                                                                                            at okhttp3.OkHttpClient.<init>(OkHttpClient.java:147)
                                                                                            at myapp.backend.net.MultipartHttpClient.getOkHttpClient(MultipartHttpClient.java:166)
                                                                                            at myapp.backend.net.MultipartHttpClient.getMultipartClientHttpRequest(MultipartHttpClient.java:135)
                                                                                            at myapp.backend.net.MultipartHttpClient.doHttpCall(MultipartHttpClient.java:273)
                                                                                            at myapp.core.codec.impl.ApiClientRequestImpl.doRequest(ApiClientRequestImpl.java:307)
                                                                                            at myapp.GcmReceiver.sendDeviceSetConfig(GcmReceiver.java:173)
                                                                                            at myapp.GcmReceiver$1.background(GcmReceiver.java:83)
                                                                                            at myapp.SimpleAsyncTask.doInBackground(SimpleAsyncTask.java:32)
                                                                                            at myapp.util.SimpleAsyncTask.doInBackground(SimpleAsyncTask.java:16)
                                                                                            at android.os.AsyncTask$2.call(AsyncTask.java:288)
                                                                                            at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                                                                                            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
                                                                                            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
                                                                                            at java.lang.Thread.run(Thread.java:818)
                                                                                         Caused by: java.lang.ClassNotFoundException: Didn't find class "okhttp3.internal.tls.OkHostnameVerifier" on path: DexPathList[[zip file "/data/app/com.familyandco.mifamily.dev-2/base.apk"],nativeLibraryDirectories=[/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 okhttp3.OkHttpClient$Builder.<init>(OkHttpClient.java:340) 
                                                                                            at okhttp3.OkHttpClient.<init>(OkHttpClient.java:147) 
                                                                                            at myapp.backend.net.MultipartHttpClient.getOkHttpClient(MultipartHttpClient.java:166) 
                                                                                            at myapp.backend.net.MultipartHttpClient.getMultipartClientHttpRequest(MultipartHttpClient.java:135) 
                                                                                            at myapp.backend.net.MultipartHttpClient.doHttpCall(MultipartHttpClient.java:273) 
                                                                                            at myapp.core.codec.impl.ApiClientRequestImpl.doRequest(ApiClientRequestImpl.java:307) 
                                                                                            at myapp.gcm.GcmReceiver.sendDeviceSetConfig(GcmReceiver.java:173) 
                                                                                            at myapp.gcm.GcmReceiver$1.background(GcmReceiver.java:83) 
                                                                                            at myapp.util.SimpleAsyncTask.doInBackground(SimpleAsyncTask.java:32) 
                                                                                            at myapp.util.SimpleAsyncTask.doInBackground(SimpleAsyncTask.java:16) 
                                                                                            at android.os.AsyncTask$2.call(AsyncTask.java:288) 
                                                                                            at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
                                                                                            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 
                                                                                            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 
                                                                                            at java.lang.Thread.run(Thread.java:818) 
                                                                                            Suppressed: java.lang.ClassNotFoundException: okhttp3.internal.tls.OkHostnameVerifier
                                                                                            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)
                                                                                                    ... 16 more
                                                                                         Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

Weird?

[efkan]

Hello,

I get the same error when I try to use okhttp-3.3.1.jar. Do you have any idea?

Explanation: I’ll try to build an Android app that’ been developed by using react-native. At the same time I know that react-native uses the okhttp3 in its NetworkingModule. But I get this error.

Also I tried out okhttp-3.0.1.jar. I get the same error. Therefore I guess a different thing causes the problem and it specific to me.

After a while: I think the problem regarding with both of react-native and I use the okhttp3 library. And because of the same class names a conflict occurs.

[dave-r12]

Shoot, is this from the maven-bundle-plugin?