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2.1.1.-pre1: System.ArgumentNullException: Value cannot be null.

See original GitHub issue

FFImageLoading stopped working for me. When I load a listview with embedded png resources, I get this error and the app crashes.

System.ArgumentNullException: Value cannot be null.
Parameter name: key

Thread finished: <Thread Pool> #4
05-27 17:00:30.431 D/Mono    (17366): [0xd8e2e930] worker finishing
Thread finished: <Thread Pool> #3
05-27 17:00:37.861 D/Mono    (17366): [0xd8f3f930] worker finishing
Thread finished: <Thread Pool> #2
Thread finished: <Thread Pool> #6
05-27 17:00:50.661 D/Mono    (17366): [0xd4aff930] worker finishing
05-27 17:01:01.781 D/Mono    (17366): DllImport attempting to load: '/system/lib/liblog.so'.
05-27 17:01:01.781 D/Mono    (17366): DllImport loaded library '/system/lib/liblog.so'.
05-27 17:01:01.781 D/Mono    (17366): DllImport searching in: '/system/lib/liblog.so' ('/system/lib/liblog.so').
05-27 17:01:01.781 D/Mono    (17366): Searching for '__android_log_print'.
05-27 17:01:01.781 D/Mono    (17366): Probing '__android_log_print'.
05-27 17:01:01.781 D/Mono    (17366): Found as '__android_log_print'.
05-27 17:01:01.801 I/MonoDroid(17366): UNHANDLED EXCEPTION:
05-27 17:01:01.801 I/MonoDroid(17366): System.ArgumentNullException: Value cannot be null.
05-27 17:01:01.801 I/MonoDroid(17366): Parameter name: key
05-27 17:01:01.801 I/MonoDroid(17366):   at System.Collections.Concurrent.ConcurrentDictionary`2[TKey,TValue].GetOrAdd (System.Collections.Concurrent.TKey key, System.Func`2 valueFactory) [0x0000b] in /Users/builder/data/lanes/1196/3e934261/source/mono/external/referencesource/mscorlib/system/collections/Concurrent/ConcurrentDictionary.cs:1041 
05-27 17:01:01.801 I/MonoDroid(17366):   at FFImageLoading.Work.ImageLoaderTaskBase.GetKey (System.String path, Boolean raw) [0x00044] in <filename unknown>:0 
05-27 17:01:01.801 I/MonoDroid(17366):   at FFImageLoading.Work.ImageLoaderTaskBase.CanUseMemoryCache (System.String path) [0x00000] in <filename unknown>:0 
05-27 17:01:01.801 I/MonoDroid(17366):   at FFImageLoading.Work.WorkScheduler+<LoadImage>d__19.MoveNext () [0x0015b] in <filename unknown>:0 
05-27 17:01:01.801 I/MonoDroid(17366): --- End of stack trace from previous location where exception was thrown ---
05-27 17:01:01.801 I/MonoDroid(17366):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/1196/3e934261/source/mono/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143 
05-27 17:01:01.801 I/MonoDroid(17366):   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>m__0 (System.Object state) [0x00000] in /Users/builder/data/lanes/1196/3e934261/source/mono/external/referencesource/mscorlib/system/runtime/compilerservices/AsyncMethodBuilder.cs:1018 
05-27 17:01:01.801 I/MonoDroid(17366):   at Android.App.SyncContext+<Post>c__AnonStorey0.<>m__0 () [0x00000] in /Users/builder/data/lanes/3204/804c6cb7/source/monodroid/src/Mono.Android/src/Android.App/SyncContext.cs:18 
05-27 17:01:01.801 I/MonoDroid(17366):   at Java.Lang.Thread+RunnableImplementor.Run () [0x0000b] in /Users/builder/data/lanes/3204/804c6cb7/source/monodroid/src/Mono.Android/src/Java.Lang/Thread.cs:36 
05-27 17:01:01.801 I/MonoDroid(17366):   at Java.Lang.IRunnableInvoker.n_Run (IntPtr jnienv, IntPtr native__this) [0x00009] in /Users/builder/data/lanes/3204/804c6cb7/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Java.Lang.IRunnable.cs:81 
05-27 17:01:01.801 I/MonoDroid(17366):   at (wrapper dynamic-method) System.Object:ed241693-715f-4c00-893b-efe451ca4a51 (intptr,intptr)
05-27 17:01:01.831 I/art     (17366): Starting a blocking GC Explicit
05-27 17:01:01.851 I/art     (17366): Explicit concurrent mark sweep GC freed 8435(640KB) AllocSpace objects, 4(64KB) LOS objects, 67% free, 7MB/23MB, paused 320us total 17.296ms
05-27 17:01:01.851 D/Mono    (17366): GC_OLD_BRIDGE num-objects 51 num_hash_entries 52 sccs size 52 init 0.00ms df1 0.12ms sort 0.09ms dfs2 0.20ms setup-cb 0.06ms free-data 0.05ms links 1/1/1/1 dfs passes 104/53
05-27 17:01:01.851 D/Mono    (17366): GC_MINOR: (Nursery full) pause 11.69ms, total 11.93ms, bridge 0.00ms promoted 416K major 3104K los 725K
05-27 17:01:01.861 W/art     (17366): JNI RegisterNativeMethods: attempt to register 0 native methods for android.runtime.JavaProxyThrowable
05-27 17:01:01.861 D/Mono    (17366): DllImport searching in: '__Internal' ('(null)').
05-27 17:01:01.861 D/Mono    (17366): Searching for 'java_interop_jnienv_throw'.
05-27 17:01:01.861 D/Mono    (17366): Probing 'java_interop_jnienv_throw'.
05-27 17:01:01.861 D/Mono    (17366): Found as 'java_interop_jnienv_throw'.
The thread 'Unknown' (0x4) has exited with code 0 (0x0).
The thread 'Unknown' (0x3) has exited with code 0 (0x0).
The thread 'Unknown' (0x2) has exited with code 0 (0x0).
The thread 'Unknown' (0x6) has exited with code 0 (0x0).
An unhandled exception occured.

05-27 17:01:03.891 E/mono    (17366): 
05-27 17:01:03.891 E/mono    (17366): Unhandled Exception:
05-27 17:01:03.891 E/mono    (17366): System.ArgumentNullException: Value cannot be null.
05-27 17:01:03.891 E/mono    (17366): Parameter name: key
05-27 17:01:03.891 E/mono    (17366):   at System.Collections.Concurrent.ConcurrentDictionary`2[TKey,TValue].GetOrAdd (System.Collections.Concurrent.TKey key, System.Func`2 valueFactory) [0x0000b] in /Users/builder/data/lanes/1196/3e934261/source/mono/external/referencesource/mscorlib/system/collections/Concurrent/ConcurrentDictionary.cs:1041 
05-27 17:01:03.891 E/mono    (17366):   at FFImageLoading.Work.ImageLoaderTaskBase.GetKey (System.String path, Boolean raw) [0x00044] in <filename unknown>:0 
05-27 17:01:03.891 E/mono    (17366):   at FFImageLoading.Work.ImageLoaderTaskBase.CanUseMemoryCache (System.String path) [0x00000] in <filename unknown>:0 
05-27 17:01:03.891 E/mono    (17366):   at FFImageLoading.Work.WorkScheduler+<LoadImage>d__19.MoveNext () [0x0015b] in <filename unknown>:0 
05-27 17:01:03.891 E/mono    (17366): --- End of stack trace from previous location where exception was thrown ---
05-27 17:01:03.891 E/mono    (17366):   at (wrapper dynamic-method) System.Object:ed241693-715f-4c00-893b-efe451ca4a51 (intptr,intptr)
05-27 17:01:03.891 E/mono    (17366):   at (wrapper native-to-managed) System.Object:ed241693-715f-4c00-893b-efe451ca4a51 (intptr,intptr)
05-27 17:01:03.891 E/mono-rt (17366): [ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentNullException: Value cannot be null.
05-27 17:01:03.891 E/mono-rt (17366): Parameter name: key
05-27 17:01:03.891 E/mono-rt (17366):   at System.Collections.Concurrent.ConcurrentDictionary`2[TKey,TValue].GetOrAdd (System.Collections.Concurrent.TKey key, System.Func`2 valueFactory) [0x0000b] in /Users/builder/data/lanes/1196/3e934261/source/mono/external/referencesource/mscorlib/system/collections/Concurrent/ConcurrentDictionary.cs:1041 
05-27 17:01:03.891 E/mono-rt (17366):   at FFImageLoading.Work.ImageLoaderTaskBase.GetKey (System.String path, Boolean raw) [0x00044] in <filename unknown>:0 
05-27 17:01:03.891 E/mono-rt (17366):   at FFImageLoading.Work.ImageLoaderTaskBase.CanUseMemoryCache (System.String path) [0x00000] in <filename unknown>:0 
05-27 17:01:03.891 E/mono-rt (17366):   at FFImageLoading.Work.WorkScheduler+<LoadImage>d__19.MoveNext () [0x0015b] in <filename unknown>:0 
05-27 17:01:03.891 E/mono-rt (17366): --- End of stack trace from previous location where exception was thrown ---
05-27 17:01:03.891 E/mono-rt (17366):   at (wrapper dynamic-method) System.Object:ed241693-715f-4c00-893b-efe451ca4a51 (intptr,intptr)
05-27 17:01:03.891 E/mono-rt (17366):   at (wrapper native-to-managed) System.Object:ed241693-715f-4c00-893b-efe451ca4a51 (intptr,intptr)
Thread started: <Thread Pool> #8
Thread started: <Thread Pool> #9
05-27 17:01:03.921 D/Mono    (17366): [0xd8e2e930] worker starting
Thread started: <Thread Pool> #10
05-27 17:01:03.941 D/Mono    (17366): [0xd4aff930] worker starting
Thread started: <Thread Pool> #11
05-27 17:01:03.961 D/Mono    (17366): [0xd6d56930] worker starting
referenceTable GDEF length=814 1
referenceTable GSUB length=11364 1
referenceTable GPOS length=47302 1
referenceTable head length=54 1
referenceTable GDEF length=808 1
referenceTable GSUB length=11364 1
referenceTable GPOS length=49206 1
referenceTable head length=54 1

Issue Analytics

State:
Created 7 years ago
Comments:7 (3 by maintainers)

Top GitHub Comments

1reaction

softsancommented, Jun 2, 2016

Updated XF to 2.3.0.46-pre3 and FFImage to 2.1.1-pre2 but have the same issue on iOS List view scrolling:

System.ArgumentNullExceptionValue cannot be null. Parameter name: key

FFImageLoading.Concurrency.ConcurrentDictionary<TKey, TValue>.ThrowKeyNullException()
FFImageLoading.Concurrency.ConcurrentDictionary<TKey, TValue>.TryRemove(TKey key, ref TValue value)
FFImageLoading.Work.WorkScheduler.RemovePendingTask(IImageLoaderTask task)
FFImageLoading.ImageService.RemovePendingTask(IImageLoaderTask task)
FFImageLoading.Work.ImageLoaderTaskBase.Cancel()
FFImageLoading.Forms.Touch.CachedImageRenderer.Cancel()
FFImageLoading.Forms.Touch.CachedImageRenderer.SetImage(CachedImage oldElement)
FFImageLoading.Forms.Touch.CachedImageRenderer.OnElementChanged(ElementChangedEventArgs<_> e)
Xamarin.Forms.Platform.iOS.VisualElementRenderer<TElement>.SetElement(TElement element)
Xamarin.Forms.Platform.iOS.VisualElementRenderer<TElement>.SetElement(VisualElement element)
Xamarin.Forms.Platform.iOS.RendererPool.UpdateRenderers(Element newElement)
Xamarin.Forms.Platform.iOS.RendererPool.UpdateNewElement(VisualElement newElement)
Xamarin.Forms.Platform.iOS.VisualElementPackager.SetElement(VisualElement oldElement, VisualElement newElement)
Xamarin.Forms.Platform.iOS.VisualElementPackager.OnRendererElementChanged(object sender, VisualElementChangedEventArgs args)
Xamarin.Forms.Platform.iOS.VisualElementRenderer<TElement>.OnElementChanged(ElementChangedEventArgs<_> e)
Xamarin.Forms.Platform.iOS.VisualElementRenderer<TElement>.SetElement(TElement element)
Xamarin.Forms.Platform.iOS.VisualElementRenderer<TElement>.SetElement(VisualElement element)
Xamarin.Forms.Platform.iOS.ViewCellRenderer.ViewTableCell.UpdateCell(ViewCell cell)
Xamarin.Forms.Platform.iOS.ViewCellRenderer.ViewTableCell.set_ViewCell(ViewCell value)
Xamarin.Forms.Platform.iOS.ViewCellRenderer.GetCell(Cell item, UITableViewCell reusableCell, UITableView tv)
Xamarin.Forms.Platform.iOS.CellTableViewCell.GetNativeCell(UITableView tableView, Cell cell, bool recycleCells, string templateId)
Xamarin.Forms.Platform.iOS.ListViewRenderer.ListViewDataSource.GetCell(UITableView tableView, NSIndexPath indexPath)
UIKit.UIApplication.UIApplicationMain(int, string[], intptr, intptr)(wrapper managed-to-native)
UIKit.UIApplication.Main(string[] args, IntPtr principal, IntPtr delegate)UIApplication.cs:77
UIKit.UIApplication.Main(string[] args, string principalClassName, string delegateClassName)UIApplication.cs:60
sampleapp.iOS.Application.Main(string[] args)Main.cs:37

0reactions

softsancommented, Jun 3, 2016

FFImageLoading 2.1.1 fixed the issue. Thanks.

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