Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Stack Overflow by Chandra Gopalaiah
, 9 months ago
No static method validate(J)Z in class Lrx/internal/operators/BackpressureUtils; or its super classes (declaration of 'rx.internal.operators.BackpressureUtils' appears in /data/app/com.sample.rxjavalearning-2/base.apk)
java.lang.NoSuchMethodError: No static method validate(J)Z in class Lrx/internal/operators/BackpressureUtils; or its super classes (declaration of 'rx.internal.operators.BackpressureUtils' appears in /data/app/com.sample.rxjavalearning-2/base.apk)	at rx.internal.operators.OnSubscribeCreate$BaseEmitter.request(OnSubscribeCreate.java:132)	at rx.internal.operators.OperatorTake$1$1.request(OperatorTake.java:106)	at rx.Subscriber.setProducer(Subscriber.java:211)	at rx.internal.operators.OperatorTake$1.setProducer(OperatorTake.java:90)	at rx.Subscriber.setProducer(Subscriber.java:205)	at rx.internal.operators.OnSubscribeCreate.call(OnSubscribeCreate.java:71)	at rx.internal.operators.OnSubscribeCreate.call(OnSubscribeCreate.java:32)	at rx.Observable$2.call(Observable.java:162)	at rx.Observable$2.call(Observable.java:154)	at rx.Observable$2.call(Observable.java:162)	at rx.Observable$2.call(Observable.java:154)	at rx.Observable$2.call(Observable.java:162)	at rx.Observable$2.call(Observable.java:154)	at rx.Observable$2.call(Observable.java:162)	at rx.Observable$2.call(Observable.java:154)	at rx.Observable$2.call(Observable.java:162)	at rx.Observable$2.call(Observable.java:154)	at rx.Observable.unsafeSubscribe(Observable.java:8098)	at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:232)	at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:142)	at rx.internal.operators.OnSubscribeFromIterable$IterableProducer.fastpath(OnSubscribeFromIterable.java:127)	at rx.internal.operators.OnSubscribeFromIterable$IterableProducer.request(OnSubscribeFromIterable.java:70)	at rx.Subscriber.setProducer(Subscriber.java:211)	at rx.internal.operators.OnSubscribeFromIterable.call(OnSubscribeFromIterable.java:49)	at rx.internal.operators.OnSubscribeFromIterable.call(OnSubscribeFromIterable.java:32)	at rx.Observable$2.call(Observable.java:162)	at rx.Observable$2.call(Observable.java:154)	at rx.Observable$2.call(Observable.java:162)	at rx.Observable$2.call(Observable.java:154)	at rx.Observable.unsafeSubscribe(Observable.java:8098)	at rx.internal.operators.OperatorPublish.connect(OperatorPublish.java:186)	at rx.internal.operators.OnSubscribeRefCount.call(OnSubscribeRefCount.java:71)	at rx.internal.operators.OnSubscribeRefCount.call(OnSubscribeRefCount.java:38)	at rx.Observable.unsafeSubscribe(Observable.java:8098)	at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)	at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)	at rx.Observable.subscribe(Observable.java:8191)	at rx.Observable.subscribe(Observable.java:8158)	at rx.Observable.subscribe(Observable.java:7962)	at com.sample.rxjavalearning.scan.ScanActivity.performScanning(ScanActivity.java:132)	at com.sample.rxjavalearning.scan.ScanActivity.onScanToggleClick(ScanActivity.java:83)	at com.sample.rxjavalearning.scan.ScanActivity_ViewBinding$1.doClick(ScanActivity_ViewBinding.java:37)	at butterknife.internal.DebouncingOnClickListener.onClick(DebouncingOnClickListener.java:22)	at android.view.View.performClick(View.java:5698)	at android.widget.TextView.performClick(TextView.java:10850)	at android.view.View$PerformClick.run(View.java:22523)	at android.os.Handler.handleCallback(Handler.java:739)	at android.os.Handler.dispatchMessage(Handler.java:95)	at android.os.Looper.loop(Looper.java:158)	at android.app.ActivityThread.main(ActivityThread.java:7230)	at java.lang.reflect.Method.invoke(Native Method)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)