i have a problem in pager 3 in my app every thing goes well but in rotation to land scape or in some time navigation to anther fragment and pop back make it crash giving me that exception , i am using java , i just take one parameter for query and when i receive paging source in View Model i cache it in View Model scop (Courtine Scope) and return it it here is a code
here is a exception
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.app.zoomchat, PID: 6341 java.lang.IllegalStateException: Attempt to collect twice from pageEventFlow, which is an illegal operation. Did you forget to call Flow<PagingData<*>>.cachedIn(coroutineScope)? at androidx.paging.PageFetcherSnapshot$pageEventFlow$1.invokeSuspend(PageFetcherSnapshot.kt:82) at androidx.paging.PageFetcherSnapshot$pageEventFlow$1.invoke(Unknown Source:8) at androidx.paging.PageFetcherSnapshot$pageEventFlow$1.invoke(Unknown Source:4) at androidx.paging.CancelableChannelFlowKt$cancelableChannelFlow$1.invokeSuspend(CancelableChannelFlow.kt:30) at androidx.paging.CancelableChannelFlowKt$cancelableChannelFlow$1.invoke(Unknown Source:8) at androidx.paging.CancelableChannelFlowKt$cancelableChannelFlow$1.invoke(Unknown Source:4) at androidx.paging.SimpleChannelFlowKt$simpleChannelFlow$1$1$producer$1$1.invokeSuspend(SimpleChannelFlow.kt:57) at androidx.paging.SimpleChannelFlowKt$simpleChannelFlow$1$1$producer$1$1.invoke(Unknown Source:8) at androidx.paging.SimpleChannelFlowKt$simpleChannelFlow$1$1$producer$1$1.invoke(Unknown Source:4) at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:89) at kotlinx.coroutines.CoroutineScopeKt.coroutineScope(CoroutineScope.kt:264) at androidx.paging.SimpleChannelFlowKt$simpleChannelFlow$1$1$producer$1.invokeSuspend(SimpleChannelFlow.kt:52) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106) at kotlinx.coroutines.EventLoop.processUnconfinedEvent(EventLoop.common.kt:69) at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:376) at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:30) at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:25) at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:110)