android.runtime.JavaProxyThrowable: System.ArgumentNullException: Value cannot be null. Parameter name: source at System.Reactive.Linq.Observable.SelectMany[TSource,TResult] (IObservable`1 source, System.Func`2 selector) <0xdc810e38 + 0x000ac> in <filename unknown>:0 at Akavache.JsonSerializationMixin.GetObject[T] (IBlobCache This, System.String key) <0xdb330320 + 0x0017f> in <filename unknown>:0 at Akavache.JsonSerializationMixin.GetAndFetchLatest[T] (IBlobCache This, System.String key, System.Func`1 fetchFunc, System.Func`2 fetchPredicate, Nullable`1 absoluteExpiration, Boolean shouldInvalidateOnError) <0xdc8a8af8 + 0x00397> in <filename unknown>:0 at Akavache.JsonSerializationMixin.GetAndFetchLatest[T] (IBlobCache This, System.String key, System.Func`1 fetchFunc, System.Func`2 fetchPredicate, Nullable`1 absoluteExpiration) <0xdc8a8868 + 0x0010b> in <filename unknown>:0 at Uurwerk.DataStore.Akavache.ShiftStore+<GetShiftsForMonthAsync>c__async0.MoveNext () <0xdc8a7b30 + 0x00357> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0xdc860430 + 0x0001b> in <filename unknown>:0 at Uurwerk.DataStore.Akavache.ShiftStore+<GetShiftsForDateAsync>c__async1.MoveNext () <0xdc8b7690 + 0x0022b> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0xdc860430 + 0x0001b> in <filename unknown>:0 at Uurwerk.Core.ViewModels.CalendarViewModel+<LoadShiftsForSelectedDate>c__async3+<LoadShiftsForSelectedDate>c__AnonStorey6+<LoadShiftsForSelectedDate>c__async5.MoveNext () <0xdc8b6d88 + 0x0017f> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0xdc890808 + 0x00017> in <filename unknown>:0 at Route2IT.Mobile.Core.ViewModels.BaseViewModel+<LongRunningTaskAsync>c__async0.MoveNext () <0xdb1c57e8 + 0x0017b> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0xdc890808 + 0x00017> in <filename unknown>:0 at Uurwerk.Core.ViewModels.CalendarViewModel+<LoadShiftsForSelectedDate>c__async3.MoveNext () <0xdc8b6368 + 0x002a7> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0xdc890808 + 0x00017> in <filename unknown>:0 at Uurwerk.Core.ViewModels.CalendarViewModel+<OnPropertyChanged>c__async0.MoveNext () <0xdc8a68f0 + 0x0025b> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>m__0 (System.Object state) <0xdc9eb8c0 + 0x00047> in <filename unknown>:0 at Android.App.SyncContext+<Post>c__AnonStorey0.<>m__0 () <0xdc81b0a0 + 0x00027> in <filename unknown>:0 at Java.Lang.Thread+RunnableImplementor.Run () <0xdc81aec0 + 0x0003f> in <filename unknown>:0 at Java.Lang.IRunnableInvoker.n_Run (IntPtr jnienv, IntPtr native__this) <0xdc81adf0 + 0x0004f> in <filename unknown>:0 at (wrapper dynamic-method) System.Object:2121b381-a327-46dd-965e-5d858df26fdd (intptr,intptr)

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Solutions on the web

via GitHub by mvanbeusekom
, 1 year ago
System.ArgumentNullException: Value cannot be null. Parameter name: source at System.Reactive.Linq.Observable.SelectMany[TSource,TResult] (IObservable`1 source, System.Func`2 selector) <0xdc810e38 + 0x000ac> in <filename unknown>:0 at
via GitHub by marcvannieuwenhuijzen
, 10 months ago
, System.Func`1[TResult] repeat) [0x0009c] in <b0fc14d4e5b04749b7241d1235a68329>:0 at Xamarin.Forms.AnimationExtensions.Animate (Xamarin.Forms.IAnimatable self, System.String name, System.Action`1[T] callback, System.UInt32 rate, System.UInt32 length
via GitHub by monday8am
, 1 year ago
Toggl.Joey.UI.Fragments.EditTimeEntryFragment+&lt;OnViewCreated&gt;c__async0.MoveNext () [0x0037f] in &lt;filename unknown&gt;:0 --- End of stack trace from previous location where exception was thrown --- at
via GitHub by monday8am
, 1 year ago
at Toggl.Phoebe.Data.ViewModels.LogTimeEntriesViewModel+&lt;ContinueTimeEntryAsync&gt;c__async1.MoveNext () [0x0003c] in &lt;filename unknown&gt;:0 --- End of stack trace from previous location where exception was thrown --- at
via GitHub by monday8am
, 1 year ago
Toggl.Phoebe.Data.Utils.TimeEntriesFeed+&lt;LoadMore&gt;c__async0.MoveNext () &lt;0x62069508 + 0x00a53&gt; in &lt;filename unknown&gt;:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
via Stack Overflow by HeisenBerg
, 1 year ago
<filename unknown>:0 at Gogch.Droid.MainActivity+<button_OnClick>c__async0.MoveNext () <0xaf58c608 + 0x00137> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at
android.runtime.JavaProxyThrowable: System.ArgumentNullException: Value cannot be null. Parameter name: source at System.Reactive.Linq.Observable.SelectMany[TSource,TResult] (IObservable`1 source, System.Func`2 selector) <0xdc810e38 + 0x000ac> in <filename unknown>:0 at Akavache.JsonSerializationMixin.GetObject[T] (IBlobCache This, System.String key) <0xdb330320 + 0x0017f> in <filename unknown>:0 at Akavache.JsonSerializationMixin.GetAndFetchLatest[T] (IBlobCache This, System.String key, System.Func`1 fetchFunc, System.Func`2 fetchPredicate, Nullable`1 absoluteExpiration, Boolean shouldInvalidateOnError) <0xdc8a8af8 + 0x00397> in <filename unknown>:0 at Akavache.JsonSerializationMixin.GetAndFetchLatest[T] (IBlobCache This, System.String key, System.Func`1 fetchFunc, System.Func`2 fetchPredicate, Nullable`1 absoluteExpiration) <0xdc8a8868 + 0x0010b> in <filename unknown>:0 at Uurwerk.DataStore.Akavache.ShiftStore+<GetShiftsForMonthAsync>c__async0.MoveNext () <0xdc8a7b30 + 0x00357> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0xdc860430 + 0x0001b> in <filename unknown>:0 at Uurwerk.DataStore.Akavache.ShiftStore+<GetShiftsForDateAsync>c__async1.MoveNext () <0xdc8b7690 + 0x0022b> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0xdc860430 + 0x0001b> in <filename unknown>:0 at Uurwerk.Core.ViewModels.CalendarViewModel+<LoadShiftsForSelectedDate>c__async3+<LoadShiftsForSelectedDate>c__AnonStorey6+<LoadShiftsForSelectedDate>c__async5.MoveNext () <0xdc8b6d88 + 0x0017f> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0xdc890808 + 0x00017> in <filename unknown>:0 at Route2IT.Mobile.Core.ViewModels.BaseViewModel+<LongRunningTaskAsync>c__async0.MoveNext () <0xdb1c57e8 + 0x0017b> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0xdc890808 + 0x00017> in <filename unknown>:0 at Uurwerk.Core.ViewModels.CalendarViewModel+<LoadShiftsForSelectedDate>c__async3.MoveNext () <0xdc8b6368 + 0x002a7> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0xdc9ead30 + 0x000c3> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0xdc9eac50 + 0x0008b> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0xdc8604f0 + 0x0003f> in <filename unknown>:0 at System.Runtime.CompilerServices.TaskAwaiter.GetResult () <0xdc890808 + 0x00017> in <filename unknown>:0 at Uurwerk.Core.ViewModels.CalendarViewModel+<OnPropertyChanged>c__async0.MoveNext () <0xdc8a68f0 + 0x0025b> in <filename unknown>:0 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0xdb2f08f8 + 0x00024> in <filename unknown>:0 at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>m__0 (System.Object state) <0xdc9eb8c0 + 0x00047> in <filename unknown>:0 at Android.App.SyncContext+<Post>c__AnonStorey0.<>m__0 () <0xdc81b0a0 + 0x00027> in <filename unknown>:0 at Java.Lang.Thread+RunnableImplementor.Run () <0xdc81aec0 + 0x0003f> in <filename unknown>:0 at Java.Lang.IRunnableInvoker.n_Run (IntPtr jnienv, IntPtr native__this) <0xdc81adf0 + 0x0004f> in <filename unknown>:0 at (wrapper dynamic-method) System.Object:2121b381-a327-46dd-965e-5d858df26fdd (intptr,intptr)
at mono.java.lang.RunnableImplementor.n_run(Native Method)
at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:168)
at android.app.ActivityThread.main(ActivityThread.java:5845)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)

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