java.lang.IllegalArgumentException: Unable to create converter for

i am using gson+rxjava2+retrofit2 in my android project. i am getting following error: java.lang.NoSuchMethodError: com.google.gson.Gson.newJsonReader AND:

java.lang.IllegalArgumentException: Unable to create converter for
tv.mchang.data.api.Result<tv.mchang.data.api.bean.main.ColumnInfo>

Here are the details：

07-17 17:32:27.968 E/MctvApp (21795): uncaughtException: 

07-17 17:32:27.968 E/MctvApp (21795): java.lang.NoSuchMethodError: com.google.gson.Gson.newJsonReader

07-17 17:32:27.968 E/MctvApp (21795): 	at retrofit2.converter.gson.GsonResponseBodyConverter.convert(GsonResponseBodyConverter.java:37)

07-17 17:32:27.968 E/MctvApp (21795): 	at retrofit2.converter.gson.GsonResponseBodyConverter.convert(GsonResponseBodyConverter.java:27)

07-17 17:32:27.968 E/MctvApp (21795): 	at retrofit2.ServiceMethod.toResponse(ServiceMethod.java:122)

07-17 17:32:27.968 E/MctvApp (21795): 	at retrofit2.OkHttpCall.parseResponse(OkHttpCall.java:217)

07-17 17:32:27.968 E/MctvApp (21795): 	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180)

07-17 17:32:27.968 E/MctvApp (21795): 	at retrofit2.adapter.rxjava2.CallExecuteObservable.subscribeActual(CallExecuteObservable.java:42)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.Observable.subscribe(Observable.java:11194)

07-17 17:32:27.968 E/MctvApp (21795): 	at retrofit2.adapter.rxjava2.BodyObservable.subscribeActual(BodyObservable.java:34)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.Observable.subscribe(Observable.java:11194)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.subscribeInner(ObservableFlatMap.java:162)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.onNext(ObservableFlatMap.java:139)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(ObservableObserveOn.java:200)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(ObservableObserveOn.java:252)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker$BooleanRunnable.run(ExecutorScheduler.java:261)

07-17 17:32:27.968 E/MctvApp (21795): 	at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker.run(ExecutorScheduler.java:226)

07-17 17:32:27.968 E/MctvApp (21795): 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)

07-17 17:32:27.968 E/MctvApp (21795): 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)

07-17 17:32:27.968 E/MctvApp (21795): 	at java.lang.Thread.run(Thread.java:841)

//Error message
java.lang.IllegalArgumentException: Unable to create converter for tv.mchang.data.api.Result<tv.mchang.data.api.bean.main.ColumnInfo>
for method IMainService.getColumnInfo
at retrofit2.ServiceMethod$Builder.methodError(ServiceMethod.java:755)
at retrofit2.ServiceMethod$Builder.createResponseConverter(ServiceMethod.java:741)
at retrofit2.ServiceMethod$Builder.build(ServiceMethod.java:172)
at retrofit2.Retrofit.loadServiceMethod(Retrofit.java:170)
at retrofit2.Retrofit$1.invoke(Retrofit.java:147)
at $Proxy0.getColumnInfo(Native Method)
at tv.mchang.data.api.main.MainAPI.getColumnInfo(MainAPI.java:225)
at tv.mchang.data.repository.ApiResRepo.getMainColumn(ApiResRepo.java:41)
at tv.mchang.main.fragment.BaseFragment.loadData(BaseFragment.java:447)
at tv.mchang.main.fragment.BaseFragment.onActivityCreated(BaseFragment.java:144)
at android.support.v4.app.Fragment.performActivityCreated(Fragment.java:2270)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1442)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1750)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1819)
at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:797)
at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2590)
at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2377)
at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2332)
at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:2209)
at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:649)
at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:167)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1238)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1086)
at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1616)
at android.view.View.measure(View.java:16497)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1210)
at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:1550)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2312)
at android.view.View.measure(View.java:16497)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1917)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1114)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1296)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1001)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5719)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
at android.view.Choreographer.doCallbacks(Choreographer.java:574)
at android.view.Choreographer.doFrame(Choreographer.java:544)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5039)
at java.lang.reflect.Method.invokeNative(Native M

I solved it using the following method：

Gson builder = new GsonBuilder()
                .registerTypeAdapter(ColumnInfo.class, new ColumnInfoAdapter())
                .create();
        return GsonConverterFactory.create(builder);

But there is another problem： java.lang.IllegalArgumentException: Unable to create converter for tv.mchang.data.api.Result<java.util.List<tv.mchang.data.api.bean.phone.PhoneWorksInfo>>

I think this is a common mistake,I can’t solve every one of them. How can I solve this problem wisely？ Currently only in Android4.4 HISIV510. I tried to change the GSON dependent version：2.8.2 to 2.6.2,But it didn’t do anything.

[CarryHekangkai]

This problem has been solved because hisiv510 Android launcher has set the dependency of using a lower version, replacing the original version in the App.

[Marcono1234]

In case you are still experiencing this with the latest Gson version, could you please provide a minimal, reproducible example?