SimpleDiskCache ClearAsync exception

I am seeing this exception in my stacktrace sometimes. Do you know what it is related to? Exception is thrown on this line await FFImageLoading.ImageService.Instance.InvalidateCacheAsync(FFImageLoading.Cache.CacheType.All);

SimpleDiskCache+<ClearAsync>d__16.MoveNext ()
System.IO.DirectoryNotFoundException: Could not find a part of the path '/data/user/0/myapp.myapp/cache/FFSimpleDiskCache'.
__Error.WinIOError (System.Int32 errorCode, System.String maybeFullPath)
FileSystemEnumerableIterator`1[TSource].HandleError (System.Int32 hr, System.String path)
FileSystemEnumerableIterator`1[TSource].CommonInit ()
System.IO.FileSystemEnumerableIterator`1[TSource]..ctor (System.String path, System.String originalUserPath, System.String searchPattern, System.IO.SearchOption searchOption, System.IO.SearchResultHandler`1[TSource] resultHandler, System.Boolean checkHost) [0x000d6] in :0
FileSystemEnumerableFactory.CreateFileNameIterator (System.String path, System.String originalUserPath, System.String searchPattern, System.Boolean includeFiles, System.Boolean includeDirs, System.IO.SearchOption searchOption, System.Boolean checkHost)
Directory.InternalGetFileDirectoryNames (System.String path, System.String userPathOriginal, System.String searchPattern, System.Boolean includeFiles, System.Boolean includeDirs, System.IO.SearchOption searchOption, System.Boolean checkHost)
Directory.InternalGetDirectories (System.String path, System.String searchPattern, System.IO.SearchOption searchOption)
Directory.GetDirectories (System.String path)
Directory.RecursiveDelete (System.String path)
Directory.Delete (System.String path, System.Boolean recursive)
SimpleDiskCache+<ClearAsync>d__16.MoveNext ()
ExceptionDispatchInfo.Throw ()
TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task)
TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task)
TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task)
ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult ()
ImageServiceBase`1+<InvalidateCacheAsync>d__46[TImageContainer].MoveNext ()
ExceptionDispatchInfo.Throw ()
TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task)
TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task)
TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task)
TaskAwaiter.GetResult ()
Page+<OnDisappearing>d__10.MoveNext ()
ExceptionDispatchInfo.Throw ()
AsyncMethodBuilderCore+<>c.<ThrowAsync>b__6_0 (System.Object state)
SyncContext+<>c__DisplayClass2_0.<Post>b__0 ()
Thread+RunnableImplementor.Run ()
IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this)
(wrapper dynamic-method) System.Object.e1cae9d1-f90d-4a2e-9e85-5d549c933fbf(intptr,intptr)

[EmilAlipiev]

I didnt move myself. it is from my users on production but yes i think that it could be something to do with low disk space. or could it be about storing in the sd card and umounting sd card?

[ornolisvt]

Recently this problem has also occurred in my android app. It was reported in Alcatel U5 with Android 6.0, the trace

FileSystemEnumerator1[TResult].FindNextEntry (System.Byte* entryBufferPtr, System.Int32 bufferLength) FileSystemEnumerator1[TResult].MoveNext () SimpleDiskCache.InitializeEntries () FFImageLoading.Cache.SimpleDiskCache…ctor (System.String cachePath, FFImageLoading.Config.Configuration configuration) [0x00082] in <e4a68679a2a44c4694e04140bb609f9a>:0 ImageService.CreatePlatformDiskCacheInstance (FFImageLoading.Config.Configuration configuration) ImageServiceBase1[TImageContainer].InitializeIfNeeded (FFImageLoading.Config.Configuration userDefinedConfig) ImageServiceBase1[TImageContainer].get_Config () ImageCache.get_Instance () ImageService.get_MemoryCache () ImageServiceBase`1[TImageContainer].InvalidateMemoryCache () MainApplication.OnTrimMemory (Android.Content.TrimMemory level) Application.n_OnTrimMemory_I (System.IntPtr jnienv, System.IntPtr native__this, System.Int32 native_level) (wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.4(intptr,intptr,int)

My method in MainApplication

public override void OnTrimMemory([GeneratedEnum] TrimMemory level)
       {
           ImageService.Instance.InvalidateMemoryCache();
           GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
           base.OnTrimMemory(level);
       }