developeromI89

The mapper function returned a null value.

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E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.admin1.testnewstudio, PID: 5956 io.reactivex.exceptions.OnErrorNotImplementedException: The mapper function returned a null value. at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704) at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701) at io.reactivex.internal.observers.ConsumerSingleObserver.onError(ConsumerSingleObserver.java:47) at io.reactivex.internal.operators.single.SingleMap$MapSingleObserver.onError(SingleMap.java:69) at io.reactivex.internal.operators.single.SingleMap$MapSingleObserver.onSuccess(SingleMap.java:60) at io.reactivex.internal.operators.single.SingleObserveOn$ObserveOnSingleObserver.run(SingleObserveOn.java:81) at io.reactivex.android.schedulers.HandlerScheduler$ScheduledRunnable.run(HandlerScheduler.java:109)...

Developerom i89 react native

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Added new Question to React-native sections. Also this is first PR just to check if I am doing any mistakes so will not repeat them.