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PowerDAX
Advisor

Direct Query - Collection was modified; enumeration operation may not execute

Continuously run into this error with a data model built using Direct Query to a SQL on-premises database.  This occurs after saving pbix file and opening the next day.  I have had to try converting to zip and replacing the guts of a blank pbix with that of the "broken" direct query pbix but was unsuccessful with the last two.  I am now having to restore a backup from onedrive and lose any changes made since.

 

Full error message:

 

Feedback Type:
Frown (Error)

Error Message:
Collection was modified; enumeration operation may not execute.

Stack Trace:
at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
at Microsoft.Mashup.Host.Document.FormulaRegistry.<GetBuiltInFormulas>d__0.MoveNext()
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at Microsoft.Mashup.Host.Document.FormulaSet.FilteredFormulaSet.<GetFormulas>d__8.MoveNext()
at Microsoft.Mashup.Host.Document.FormulaRegistry.<GetPotentialFormulasCore>d__11.MoveNext()
at Microsoft.Mashup.Host.Document.FormulaRegistry.<GetPotentialFormulas>d__b.MoveNext()
at Microsoft.Mashup.Host.Document.FormulaRegistry.TryGetFormula(FormulaSet formulaSet, FormulaReference formulaReference, FormulaResult baseResult, Formula& formula)
at Microsoft.Mashup.Host.Document.FormulaRegistry.GetFormula(FormulaSet formulaSet, FormulaReference formulaReference, FormulaResult baseResult)
at Microsoft.Mashup.Client.UI.Shared.QueryExtensions.<>c__DisplayClass14.<SupportsCubeDirectQuery>b__13(PackageEditor packageEditor)
at Microsoft.Mashup.Host.Document.Model.Queries.InvokeWithPackageEditor[T](Nullable`1 changeReason, Func`2 action)
at Microsoft.Mashup.Client.UI.Shared.QueryExtensions.SupportsCubeDirectQuery(Query query)
at Microsoft.Mashup.Client.UI.Shared.QueryExtensions.IsCubeDirectQuery(Query query)
at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.PowerBI.Client.Windows.Report.UpdateCurrentDataProviderCapabilities()
at Microsoft.PowerBI.Client.Windows.Report..ctor(PackagePath packagePath, String reportViewDocumentContent, ReportVersionCompatibilityFlags versionCompatibility, ConnectionsSettings connectionSettings, CustomVisualCollection customVisuals, String diagramViewState, ReportLinguisticSchema linguisticSchema, ReportMetadata metadata, ReportSettings reportSettings, StaticResourceCollection staticResources)
at Microsoft.PowerBI.Client.Windows.Services.ReportFactory.CreateReportFromPowerBIPackage(IPowerBIPackage powerBIPackage, String pbixFilePath, Byte[] securityBindings, Boolean requiresConversionToReportLayout, PowerBIPackageOpenOptions options, IPowerBITelemetryService powerBITelemetryService, IAnalysisServicesService analysisServices, PackageValidationResult& mashupValidationResult)
at Microsoft.PowerBI.Client.Windows.Services.PowerBIPackagingService.Open(FileStream fileStream, IPowerBIWindowService windowService, Nullable`1 entryPoint, PowerBIPackageOpenOptions options, Boolean& allCredentialsSatisfied)
at Microsoft.PowerBI.Client.Windows.Services.FileManager.<LoadFromPbix>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.PowerBI.Client.Windows.Services.UIBlockingService.<>c__DisplayClassa`1.<<BlockUIAndRun>b__9>d__c.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.PowerBI.Client.Windows.Services.UIBlockingService.WaitOnUIThreadForTaskCompletion(Task task)
at Microsoft.PowerBI.Client.Windows.Services.UIBlockingService.BlockUIAndRun[T](Func`1 asyncMethod)
at Microsoft.PowerBI.Client.Windows.Services.FileManager.OpenFile(IPowerBIWindowService windowService, IPbixFile fileToOpen, Nullable`1 entryPoint)
at Microsoft.PowerBI.Client.Program.TryOpenOrCreateReport(IUIHost uiHost, ISplashScreen splashScreen, IFileManager fileManager, IFileHistoryManager fileHistoryManager, String filePath, FileType fileType)
at Microsoft.PowerBI.Client.Program.<>c__DisplayClassb.<Main>b__0()
at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.<>c__DisplayClass7.<HandleExceptionsWithNestedTasks>b__6()
at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)

Stack Trace Message:
Collection was modified; enumeration operation may not execute.

Invocation Stack Trace:
at Microsoft.Mashup.Host.Document.ExceptionExtensions.GetCurrentInvocationStackTrace()
at Microsoft.Mashup.Client.UI.Shared.FeedbackErrorInfo..ctor(String message, Exception exception)
at Microsoft.PowerBI.Client.Windows.Telemetry.PowerBIUserFeedbackServices.ReportException(IWindowHandle activeWindow, IUIHost uiHost, FeedbackPackageInfo feedbackPackageInfo, Exception e, Boolean useGDICapture)
at Microsoft.Mashup.Client.UI.Shared.UnexpectedExceptionHandler.<>c__DisplayClass1.<HandleException>b__0()
at Microsoft.Mashup.Client.UI.Shared.UnexpectedExceptionHandler.HandleException(Exception e)
at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
at Microsoft.PowerBI.Client.Program.Main(String[] args)

powerdax.com
1 REPLY 1
Highlighted
v-jiascu-msft Super Contributor
Super Contributor

Re: Direct Query - Collection was modified; enumeration operation may not execute

Hi @PowerDAX,

 

To be honest, I would suggest you file a support ticket here for such errors. But you still can try to upgrade the Desktop first.

create ATicket

 

Best Regards,

Dale

Community Support Team _ Dale
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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