title: rx.exceptions.OnErrorNotImplementedException How do I avoid this error - its crashing my app
body: <p>com.myapp.test.debug E/MessageQueue-JNI: rx.exceptions.OnErrorNotImplementedException
                                                                                   at rx.Observable$31.onError(Observable.java:7134)
                                                                                   at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:154)
                                                                                   at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:111)
                                                                                   at rx.observers.SafeSubscriber.onNext(SafeSubscriber.java:137)
                                                                                   at rx.subjects.SubjectSubscriptionManager$SubjectObserver.onNext(SubjectSubscriptionManager.java:224)
                                                                                   at rx.subjects.PublishSubject.onNext(PublishSubject.java:121)
                                                                                   at com.myapp.MyClass.lambda$static$53(MyClass.java:77)
  where MyClass.java 77    MySubject.onNext(event);</p>
  
  <p>A few question ...  Why is the actual error not also shown in addition to error handler not implemented?  Secondly where am I suppose to implement this function on my subject?  How exactly would I add an Error handler to the subject. Thanks this is crashing my app and the actual error is not even shown. I guess I should always implement the error handler? </p>