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I am getting this error. Everything is running fine locally, so i commit all the  changes to the repository. But when I am running again the app locally, i faced this error. Any solution?   System.AggregateException: One or more errors occurred. (Object reference not set to an instance of an object.) ---> System.NullReferenceException: Object reference not set to an instance of an object.   at Mendix.Modeler.WebUI.Forms.Exporter.ExportContext.GetExportID(IDocumentObject documentObject, String subcomponentName) in Mendix.Modeler.WebUI\Forms\Exporter\ExportContext.cs:line 100   at Mendix.Modeler.WebUI.Forms.Widgets.CustomWidgets.CustomWidget.AddWidgetObjectProperties[TBuilder](WidgetObject widgetObject, TBuilder builder, IExportContext context, Boolean isNative) in Mendix.Modeler.WebUI\Forms\Widgets\CustomWidgets\CustomWidget.cs:line 514   at Mendix.Modeler.WebUI.Forms.Widgets.CustomWidgets.CustomWidget.Mendix.Modeler.WebUI.PluginWidgets.Export.IExportAsPluginWidget.CreatePluginWidget(IExportContext context, IWidgetContainer widgetContainer) in Mendix.Modeler.WebUI\Forms\Widgets\CustomWidgets\CustomWidget.cs:line 372   at Mendix.Modeler.WebUI.PluginWidgets.PluginWidgetUtil.ToPluginWidget(IExportContext context, IWidgetContainer widgetContainer, IWidget widget) in Mendix.Modeler.WebUI\PluginWidgets\PluginWidgetUtil.cs:line 27   at System.Linq.Enumerable.SelectIListIterator`2.MoveNext()   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()   at Mendix.Common.Util.EnumerableUtil.ForEach[T](IEnumerable`1 source, Action`1 action) in Mendix.Common\Util\EnumerableUtil.cs:line 50   at Mendix.Modeler.WebUI.PluginWidgets.Builder.PropertyContainerBuilder`1.WithWidgetsProperty(String key, Func`2 builder, EntityIdentifier entityId, SnippetCall snippetCall) in Mendix.Modeler.WebUI\PluginWidgets\Builder\PropertyContainerBuilder.cs:line 206   at Mendix.Modeler.WebUI.Forms.Widgets.EntityWidgets.DataViews.DataView.Mendix.Modeler.WebUI.PluginWidgets.Export.IExportAsPluginWidget.CreatePluginWidget(IExportContext context, IWidgetContainer widgetContainer) in Mendix.Modeler.WebUI\Forms\Widgets\EntityWidgets\DataViews\DataView.cs:line 0   at Mendix.Modeler.WebUI.PluginWidgets.PluginWidgetUtil.ToPluginWidget(IExportContext context, IWidgetContainer widgetContainer, IWidget widget) in Mendix.Modeler.WebUI\PluginWidgets\PluginWidgetUtil.cs:line 27   at System.Linq.Enumerable.SelectIListIterator`2.MoveNext()   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()   at Mendix.Common.Util.EnumerableUtil.ForEach[T](IEnumerable`1 source, Action`1 action) in Mendix.Common\Util\EnumerableUtil.cs:line 50   at Mendix.Modeler.WebUI.PluginWidgets.Builder.PropertyContainerBuilder`1.WithWidgetsProperty(String key, Func`2 builder, EntityIdentifier entityId, SnippetCall snippetCall) in Mendix.Modeler.WebUI\PluginWidgets\Builder\PropertyContainerBuilder.cs:line 206   at Mendix.Modeler.WebUI.Forms.Widgets.LayoutGrids.LayoutGrid.<>c__DisplayClass11_3.<Mendix.Modeler.WebUI.PluginWidgets.Export.IExportAsPluginWidget.CreatePluginWidget>b__3(LayoutGridColumn col, Int32 colIndex) in Mendix.Modeler.WebUI\Forms\Widgets\LayoutGrids\LayoutGrid.cs:line 119   at System.Linq.Enumerable.SelectIterator[TSource,TResult](IEnumerable`1 source, Func`3 selector)+MoveNext()   at Mendix.Common.Util.EnumerableUtil.ForEach[T](IEnumerable`1 source, Action`1 action) in Mendix.Common\Util\EnumerableUtil.cs:line 50   at Mendix.Modeler.WebUI.PluginWidgets.Builder.PropertyContainerBuilder`1.WithWidgetsProperty(String key, Func`2 builder, EntityIdentifier entityId, SnippetCall snippetCall) in Mendix.Modeler.WebUI\PluginWidgets\Builder\PropertyContainerBuilder.cs:line 206   at Mendix.Modeler.WebUI.Forms.Widgets.LayoutGrids.LayoutGrid.<>c__DisplayClass11_1.<Mendix.Modeler.WebUI.PluginWidgets.Export.IExportAsPluginWidget.CreatePluginWidget>b__1(LayoutGridRow row, Int32 rowIndex) in Mendix.Modeler.WebUI\Forms\Widgets\LayoutGrids\LayoutGrid.cs:line 113   at System.Linq.Enumerable.SelectIterator[TSource,TResult](IEnumerable`1 source, Func`3 selector)+MoveNext()   at Mendix.Common.Util.EnumerableUtil.ForEach[T](IEnumerable`1 source, Action`1 action) in Mendix.Common\Util\EnumerableUtil.cs:line 50   at Mendix.Modeler.WebUI.PluginWidgets.Builder.PropertyContainerBuilder`1.WithWidgetsProperty(String key, Func`2 builder, EntityIdentifier entityId, SnippetCall snippetCall) in Mendix.Modeler.WebUI\PluginWidgets\Builder\PropertyContainerBuilder.cs:line 206   at Mendix.Modeler.WebUI.Forms.Widgets.LayoutGrids.LayoutGrid.Mendix.Modeler.WebUI.PluginWidgets.Export.IExportAsPluginWidget.CreatePluginWidget(IExportContext context, IWidgetContainer widgetContainer) in Mendix.Modeler.WebUI\Forms\Widgets\LayoutGrids\LayoutGrid.cs:line 109   at Mendix.Modeler.WebUI.Forms.Exporter.FormWriter.WriteWidget(IWriteWidget widget, IWebExportContext context) in Mendix.Modeler.WebUI\Forms\Exporter\FormWriter.cs:line 101   at Mendix.Modeler.WebUI.Forms.Exporter.FormWriter.WriteArgument(String parameterName, IEnumerable`1 widgets) in Mendix.Modeler.WebUI\Forms\Exporter\FormWriter.cs:line 82   at Mendix.Modeler.WebUI.Forms.Exporter.FormWriter.WriteArguments(IDictionary`2 arguments) in Mendix.Modeler.WebUI\Forms\Exporter\FormWriter.cs:line 295   at Mendix.Modeler.WebUI.Forms.Exporter.FormWriter.<>c__DisplayClass23_0.<Write>b__0() in Mendix.Modeler.WebUI\Forms\Exporter\FormWriter.cs:line 191   at Mendix.Modeler.Common.ResolveCache.TrackResolves(Action code) in Mendix.Modeler.Core\Common\Problems\ResolveCache.cs:line 100   at Mendix.Modeler.WebUI.Forms.Exporter.FormWriter.Write() in Mendix.Modeler.WebUI\Forms\Exporter\FormWriter.cs:line 196   at Mendix.Modeler.Common.ResolveCache.TrackResolves(Action code) in Mendix.Modeler.Core\Common\Problems\ResolveCache.cs:line 100   at Mendix.Modeler.WebUI.Forms.Exporter.FormExporter.<>c__DisplayClass5_1.<ExportForms>b__2() in Mendix.Modeler.WebUI\Forms\Exporter\FormExporter.cs:line 91   at Mendix.Modeler.Common.ResolveCache.WithCache[T](IProject project, Func`1 action) in Mendix.Modeler.Core\Common\Problems\ResolveCache.cs:line 73   at Mendix.Modeler.WebUI.Forms.Exporter.FormExporter.<>c__DisplayClass5_0.<ExportForms>b__1(IDocument document) in Mendix.Modeler.WebUI\Forms\Exporter\FormExporter.cs:line 81   at Mendix.Modeler.Projects.Changes.ChangedDocumentsProcessor`1.<>c__DisplayClass6_0.<ProcessChangedDocuments>g__DoProcess|2(IDocument document) in Mendix.Modeler.Core\Projects\Changes\ChangedDocumentsProcessor.cs:line 90   at System.Linq.Parallel.ForAllOperator`1.ForAllEnumerator`1.MoveNext(TInput& currentElement, Int32& currentKey)   at System.Linq.Parallel.ForAllSpoolingTask`2.SpoolingWork()   at System.Linq.Parallel.SpoolingTaskBase.Work()   at System.Linq.Parallel.QueryTask.BaseWork(Object unused)   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 inner exception stack trace ---   at System.Linq.Parallel.QueryTaskGroupState.QueryEnd(Boolean userInitiatedDispose)   at System.Linq.Parallel.SpoolingTask.SpoolForAll[TInputOutput,TIgnoreKey](QueryTaskGroupState groupState, PartitionedStream`2 partitions, TaskScheduler taskScheduler)   at System.Linq.Parallel.MergeExecutor`1.Execute[TKey](PartitionedStream`2 partitions, Boolean ignoreOutput, ParallelMergeOptions options, TaskScheduler taskScheduler, Boolean isOrdered, CancellationState cancellationState, Int32 queryId)   at System.Linq.Parallel.PartitionedStreamMerger`1.Receive[TKey](PartitionedStream`2 partitionedStream)   at System.Linq.Parallel.ForAllOperator`1.WrapPartitionedStream[TKey](PartitionedStream`2 inputStream, IPartitionedStreamRecipient`1 recipient, Boolean preferStriping, QuerySettings settings)   at System.Linq.Parallel.UnaryQueryOperator`2.UnaryQueryOperatorResults.ChildResultsRecipient.Receive[TKey](PartitionedStream`2 inputStream)   at System.Linq.Parallel.ScanQueryOperator`1.ScanEnumerableQueryOperatorResults.GivePartitionedStream(IPartitionedStreamRecipient`1 recipient)   at System.Linq.Parallel.UnaryQueryOperator`2.UnaryQueryOperatorResults.GivePartitionedStream(IPartitionedStreamRecipient`1 recipient)   at System.Linq.Parallel.QueryOperator`1.GetOpenedEnumerator(Nullable`1 mergeOptions, Boolean suppressOrder, Boolean forEffect, QuerySettings querySettings)   at System.Linq.Parallel.ForAllOperator`1.RunSynchronously()   at System.Linq.ParallelEnumerable.ForAll[TSource](ParallelQuery`1 source, Action`1 action)   at Mendix.Modeler.Projects.Changes.ChangedDocumentsProcessor`1.ProcessChangedDocuments(IProject project, ProjectChanges projectChanges, Func`2 processDocument) in Mendix.Modeler.Core\Projects\Changes\ChangedDocumentsProcessor.cs:line 82   at Mendix.Modeler.WebUI.Forms.Exporter.FormExporter.ExportForms(IProject project, Boolean updateRunningProject) in Mendix.Modeler.WebUI\Forms\Exporter\FormExporter.cs:line 62   at Mendix.Modeler.WebUI.Deployment.WebUIDeploymentWorker.ExportPages(IProject project, IProgressInfo info, Boolean updateRunningProject) in Mendix.Modeler.WebUI\Deployment\WebUIDeploymentWorker.cs:line 209   at Mendix.Modeler.WebUI.Deployment.WebUIDeploymentWorker.DoWork(DeploymentPhase phase, IProject project, DeploymentSettings settings, IProgressInfo info) in Mendix.Modeler.WebUI\Deployment\WebUIDeploymentWorker.cs:line 109   at Mendix.Modeler.Deployment.DeploymentProcessBuilder.ExecuteDeploymentWorkForPhase(DeploymentPhase phase, IProject project, DeploymentSettings settings, IProgressInfo info) in Mendix.Modeler.Deployment\DeploymentProcessBuilder.cs:line 185   at Mendix.Modeler.Deployment.DeploymentProcessBuilder.<>c__DisplayClass13_1.<AddBuildStepWithOverride>b__2() in Mendix.Modeler.Deployment\DeploymentProcessBuilder.cs:line 155   at Mendix.Modeler.Projects.ProjectStructureManager.<>c__DisplayClass2_0.<DoWithOverride>b__0() in Mendix.Modeler.Core\Projects\ProjectStructureManager.cs:line 40   at Mendix.Modeler.Projects.ProjectStructureManager.Do[T](IProject projectOverride, Func`1 action) in Mendix.Modeler.Core\Projects\ProjectStructureManager.cs:line 60   at Mendix.Modeler.Projects.ProjectStructureManager.DoWithOverride(IProject projectOverride, Action action) in Mendix.Modeler.Core\Projects\ProjectStructureManager.cs:line 38   at Mendix.Modeler.Deployment.DeploymentProcessBuilder.<>c__DisplayClass13_1.<AddBuildStepWithOverride>b__1() in Mendix.Modeler.Deployment\DeploymentProcessBuilder.cs:line 154   at Mendix.Modeler.ProtectedModules.ProtectedModulesUnlocker.<>c__DisplayClass3_0.<Do>b__0() in Mendix.Modeler.Core\ProtectedModules\ProtectedModulesUnlocker.cs:line 22   at Mendix.Modeler.ProtectedModules.ProtectedModulesUnlocker.ExecuteInContext[T](Boolean unlockImplementation, Func`1 code) in Mendix.Modeler.Core\ProtectedModules\ProtectedModulesUnlocker.cs:line 42   at Mendix.Modeler.ProtectedModules.ProtectedModulesUnlocker.Do(Boolean unlockImplementation, Action action) in Mendix.Modeler.Core\ProtectedModules\ProtectedModulesUnlocker.cs:line 20   at Mendix.Modeler.Deployment.DeploymentProcessBuilder.<>c__DisplayClass13_0.<AddBuildStepWithOverride>b__0(IProgressInfo info) in Mendix.Modeler.Deployment\DeploymentProcessBuilder.cs:line 153   at Mendix.Modeler.Deployment.FileIOExceptionHandlingProcess.<>c__DisplayClass2_1.<AddStep>b__1() in Mendix.Modeler.Deployment\FileIOExceptionHandlingProcess.cs:line 22   at Mendix.Modeler.Deployment.FileIOExceptionHandlingProcess.CatchDiskException(Action action) in Mendix.Modeler.Deployment\FileIOExceptionHandlingProcess.cs:line 31   at Mendix.Modeler.Deployment.FileIOExceptionHandlingProcess.<>c__DisplayClass2_0.<AddStep>b__0(IProgressInfo info) in Mendix.Modeler.Deployment\FileIOExceptionHandlingProcess.cs:line 22   at Mendix.Modeler.Utility.Progress.StepBase`1.Run(TProgressInfo info) in Mendix.Modeler.Utility\Progress\Step.cs:line 31   at Mendix.Modeler.Utility.Progress.StepBase`1.Mendix.Modeler.Utility.Progress.IStep.Run(Object progressInfo) in Mendix.Modeler.Utility\Progress\Step.cs:line 36   at Mendix.Modeler.UIFramework.Progress.ProcessRunner.RunStep(IStep step) in Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 170   at Mendix.Modeler.UIFramework.Progress.ProcessRunner.OnDoWork(Object sender, DoWorkEventArgs e) in Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 81   at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)--- End of stack trace from previous location ---   at Mendix.Modeler.UIFramework.Progress.ProcessRunner.Run() in Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 57   at Mendix.Modeler.Deployment.Deployer.RunProcess(IProcess process, String what, Boolean isPackage) in Mendix.Modeler.Deployment\Deployer.cs:line 89

asked 2025-02-19

1 answers