The calling thread cannot access this object because a different thread owns it
1
Hi everyone, I have update the polarion sample app to 9.17 version and I have updated all the widgets.The application runs fine if I directly run it but when I try to open up a microflow or create a new one it gives me the error of a different thread using the object.I searched the error and it says something about updating the UI from another thread rather than the main thread. System.InvalidOperationException: The calling thread cannot access this object because a different thread owns it. at System.Windows.Threading.Dispatcher.VerifyAccess() at System.Windows.Media.Imaging.BitmapDecoder.get_IsDownloading() at System.Windows.Media.Imaging.BitmapFrameDecode.get_InternalMetadata() at System.Windows.Media.Imaging.BitmapFrameDecode.get_Metadata() at System.Windows.Media.Imaging.BitmapFrame.Create(BitmapSource source) at Eto.Wpf.Drawing.BitmapHandler.Save(Stream stream, ImageFormat format) at Eto.Drawing.Bitmap.Save(Stream stream, ImageFormat format) at Eto.Drawing.Bitmap.ToByteArray(ImageFormat imageFormat) at Mendix.Modeler.Theming.ImageConverter.<>c__DisplayClass2_0.<ToByteArray>b__0() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Theming\ImageConverter.cs:line 74 at Eto.Forms.Application.<>c__DisplayClass63_0`1.<Invoke>b__0() at System.Windows.Threading.DispatcherOperation.InvokeDelegateCore() at System.Windows.Threading.DispatcherOperation.InvokeImpl() --- End of stack trace from previous location --- at System.Windows.Threading.DispatcherOperation.Wait(TimeSpan timeout) at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherOperation operation, CancellationToken cancellationToken, TimeSpan timeout) at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority, CancellationToken cancellationToken, TimeSpan timeout) at System.Windows.Threading.Dispatcher.Invoke(Action callback) at Eto.Forms.Application.Invoke[T](Func`1 func) at Mendix.Modeler.Theming.ImageConverter.ToByteArray(Image image) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Theming\ImageConverter.cs:line 74 at Mendix.Modeler.CodeActions.MicroflowActionInfoExtensions.ParseToEtoImage(Byte[] bytes, MicroflowActionInfo microflowActionInfo, CodeActionBitmapType type, Theme theme) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\CodeActions\MicroflowActionInfoExtensions.cs:line 58 at Mendix.Modeler.CodeActions.MicroflowActionInfoExtensions.GetBitmap(MicroflowActionInfo microflowActionInfo, CodeActionBitmapType type) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\CodeActions\MicroflowActionInfoExtensions.cs:line 44 at Mendix.Modeler.CodeActions.MicroflowActionInfoExtensions.GetIcon(MicroflowActionInfo microflowActionInfo, Nullable`1 theme) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\CodeActions\MicroflowActionInfoExtensions.cs:line 20 at Mendix.Modeler.Microflows.View.ExposedActions.ExposedMicroflowCallActionMicroflowActionProvider.CreateMicroflowActionType(Microflow exposedAction) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows.View\ExposedActions\ExposedMicroflowCallActionMicroflowActionProvider.cs:line 25 at Mendix.Modeler.Microflows.View.ExposedActions.ExposedMicroflowActionProvider`1.CreateTypes() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows.View\ExposedActions\ExposedMicroflowActionProvider.cs:line 46 at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode) at System.Lazy`1.ExecutionAndPublication(LazyHelper executionAndPublication, Boolean useDefaultConstructor) at System.Lazy`1.CreateValue() at Mendix.Modeler.Microflows.Actions.MicroflowActionProvider.get_Types() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows\Actions\MicroflowActionProvider.cs:line 24 at Mendix.Modeler.Microflows.Actions.MicroflowActionManager.<>c.<GetTypes>b__7_0(IMicroflowActionProvider c) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows\Actions\MicroflowActionManager.cs:line 39 at System.Linq.Enumerable.SelectManySingleSelectorIterator`2.MoveNext() at System.Collections.Generic.HashSet`1.UnionWith(IEnumerable`1 other) at System.Collections.Generic.HashSet`1..ctor(IEnumerable`1 collection, IEqualityComparer`1 comparer) at Mendix.Modeler.Utility.EnumerableUtil.ToSet[T](IEnumerable`1 enumerable) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Utility\EnumerableUtil.cs:line 54 at Mendix.Modeler.Microflows.Actions.MicroflowActionManager.GetTypes(String categoryName) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows\Actions\MicroflowActionManager.cs:line 39 at Mendix.Modeler.Microflows.View.MicroflowEditor.<CollectTools>b__96_0(IMicroflowActionCategory category) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows.View\MicroflowEditor.cs:line 808 at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext() at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext() at System.Linq.Lookup`2.Create(IEnumerable`1 source, Func`2 keySelector, IEqualityComparer`1 comparer) at System.Linq.GroupedEnumerable`2.GetEnumerator() at Mendix.Modeler.Microflows.View.MicroflowEditor.GetToolboxCategories(Boolean includeActions)+MoveNext() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows.View\MicroflowEditor.cs:line 0 at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) at Mendix.Modeler.Common.ToolboxTab..ctor(ToolboxEditorType editorType, String caption, IEnumerable`1 categories, ToolboxTabMode availableModes, ToolboxTileWidth tileWidth) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Common\Toolbox\ToolboxTab.cs:line 32 at Mendix.Modeler.Microflows.View.MicroflowEditor.GetTools()+MoveNext() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Microflows.View\MicroflowEditor.cs:line 665 at System.Collections.Generic.LargeArrayBuilder`1.AddRange(IEnumerable`1 items) at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source) at Mendix.Modeler.Core.View.ToolWindows.ToolboxViewModel.<>c__DisplayClass24_0.<UpdateToolboxInternalAsync>b__1() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View.CrossPlatform\ToolWindows\Toolbox\ToolboxViewModel.cs:line 92 at System.Threading.Tasks.Task`1.InnerInvoke() at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location --- at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) --- End of stack trace from previous location --- at Mendix.Modeler.Core.View.ToolWindows.ToolboxViewModel.UpdateToolboxInternalAsync(ITabbedEditor tabbedEditor) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View.CrossPlatform\ToolWindows\Toolbox\ToolboxViewModel.cs:line 91 at Mendix.Modeler.Core.View.ToolWindows.ToolboxViewModel.UpdateToolboxAsync(ITabbedEditor newEditor, ITabbedEditor oldEditor) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View.CrossPlatform\ToolWindows\Toolbox\ToolboxViewModel.cs:line 76 at Mendix.Modeler.Core.View.ToolWindows.ToolboxViewModel.<.ctor>b__21_0(ITabbedEditor newEditor, ITabbedEditor oldEditor) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View.CrossPlatform\ToolWindows\Toolbox\ToolboxViewModel.cs:line 54 at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) The other warning or sort of an error I get is : I am stuck here for days.Any help will be appreciated.Thanks in advance.