Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends September 15. Request your voucher.

Reply
AmritKanwar
New Member

Not able to open Power BI file

Feedback Type:
Frown (Error)

Timestamp:
2025-04-03T04:18:52.3783037Z

Local Time:
2025-04-03T09:48:52.3783037+05:30

Session ID:
a0b74240-ac0c-4691-8e15-08b83618270e

Release:
March 2025

Product Version:
2.141.1253.0 (25.03)+74f9999a1e95f78c739f3ea2b96ba340e9ba8729 (x64)

Error Message:
The following system error occurred: Class not registered
An error occurred when loading the '9a8747e2-24b7-43aa-9fb1-5e6d0a419674', from the file, '\\?\C:\Users\707297\Microsoft\Power BI Desktop Store App\AnalysisServicesWorkspaces\AnalysisServicesWorkspace_f599dbc8-220f-47f4-b32d-e410a5a7cb45\Data\9a8747e2-24b7-43aa-9fb1-5e6d0a419674.0.db.xml'.
An error occurred when loading the '91e7fd2e-f360-4a91-8682-9729b24b6657', from the file, '\\?\C:\Users\707297\Microsoft\Power BI Desktop Store App\AnalysisServicesWorkspaces\AnalysisServicesWorkspace_f599dbc8-220f-47f4-b32d-e410a5a7cb45\Data\91e7fd2e-f360-4a91-8682-9729b24b6657.2.db.xml'.

 

1 ACCEPTED SOLUTION
Akash_Varuna
Super User
Super User

Hi @AmritKanwar It might be a system related issue. Try reinstalling Power BI Desktop, clearing the cache, or running it as an administrator

View solution in original post

3 REPLIES 3
AmritKanwar
New Member

What could be the reason for for below given error message

 

The following system error occurred: Class not registered


PFE_SYSTEM

True

Failed to save modifications to the server. Error returned: 'The following system error occurred: Class not registered
'.

at Microsoft.Mashup.Host.Document.ExceptionExtensions.GetCurrentInvocationStackTrace()
at Microsoft.Mashup.Client.UI.Shared.FeedbackErrorInfo.GetFeedbackValuesFromException(Exception e, String prefix)
at Microsoft.Mashup.Client.UI.Shared.FeedbackErrorInfo.GetFeedbackValuesFromInnerExceptions(Exception e, Int32 depth)
at Microsoft.Mashup.Client.UI.Shared.FeedbackErrorInfo.CreateAdditionalErrorInfo(Exception e)
at Microsoft.Mashup.Client.UI.Shared.FeedbackErrorInfo..ctor(String message, Exception exception, Nullable`1 stackTraceInfo, String messageDetail)
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__DisplayClass14_0.<HandleException>b__0()
at Microsoft.Mashup.Client.UI.Shared.UnexpectedExceptionHandler.HandleException(Exception e)
at Microsoft.PowerBI.Client.PowerBIUnexpectedExceptionHandler.HandleException(Exception e)
at Microsoft.PowerBI.Client.Windows.Utilities.PowerBIFormUnexpectedExceptionHandler.HandleException(Exception e)
at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.<HandleAwaitableAsyncExceptions>d__1.MoveNext()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.Run()
at System.Threading.Tasks.AwaitTaskContinuation.RunCallback(ContextCallback callback, Object state, Task& currentTask)
at System.Threading.Tasks.Task.FinishContinuations()
at System.Threading.Tasks.Task.Finish(Boolean bUserDelegateExecuted)
at System.Threading.Tasks.Task`1.TrySetException(Object exceptionObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetException(Exception exception)
at Microsoft.PowerBI.Client.Windows.FloatingDialog.KoLoadToReportDialog.<>c__DisplayClass44_0.<<StartLoadToReportFlow>b__0>d.MoveNext()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.Run()
at System.Threading.Tasks.AwaitTaskContinuation.RunCallback(ContextCallback callback, Object state, Task& currentTask)
at System.Threading.Tasks.Task.FinishContinuations()
at System.Threading.Tasks.Task.Finish(Boolean bUserDelegateExecuted)
at System.Threading.Tasks.Task`1.TrySetException(Object exceptionObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetException(Exception exception)
at Microsoft.PowerBI.Client.Windows.Modeling.Hosting.DesktopModelingHost.<LoadToModel>d__18.MoveNext()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.Run()
at System.Threading.Tasks.AwaitTaskContinuation.RunCallback(ContextCallback callback, Object state, Task& currentTask)
at System.Threading.Tasks.Task.FinishContinuations()
at System.Threading.Tasks.Task.Finish(Boolean bUserDelegateExecuted)
at System.Threading.Tasks.Task`1.TrySetException(Object exceptionObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetException(Exception exception)
at Microsoft.PowerBI.Modeling.Engine.Authoring.AsyncModelAuthoringService.<ContinueWithAsyncOperation>d__13.MoveNext()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.Run()
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
at Microsoft.Mashup.Client.UI.Windows.DialogWindowBase.ShowModal(IWindowHandle windowHandle)
at Microsoft.Mashup.Client.UI.Shared.WindowManager.ShowModal[T](T dialog, Func`1 showModalFunction)
at Microsoft.PowerBI.Client.Windows.Services.PowerBIWindowService.<>c__DisplayClass10_0.<Microsoft.Mashup.Client.UI.Shared.Ux.IWindowService.ShowDialog>b__0()
at Microsoft.PowerBI.Client.Windows.Services.PowerBIWindowService.Trace[T](String action, String title, String details, Func`1 showDialog, Func`2 getResult)
at Microsoft.PowerBI.Client.Windows.Services.PowerBIWindowService.Trace(String action, String title, String details, Func`1 showDialog)
at Microsoft.PowerBI.Client.Windows.Services.PowerBIWindowService.Microsoft.Mashup.Client.UI.Shared.Ux.IWindowService.ShowDialog(IDialog dialog)
at Microsoft.PowerBI.Client.Windows.FloatingDialog.KoLoadToReportDialog.<>c__DisplayClass20_0.<ShowDialog>b__0()
at Microsoft.PowerBI.Client.Windows.Services.TelemetryHelper.RunInActivity[T](IPowerBITelemetryService telemetryService, ITelemetryEvent telemetryEvent, Func`1 action)
at Microsoft.PowerBI.Client.Windows.Services.LoadToReportDialogManager.Show(ILegacyUIHost uiHost, IExceptionHandler exceptionHandler, IPowerBIWindowService windowService, IPowerBIQueryErrorEditor queryErrorEditor, LoadToModelContext loadToModelContext, LocalizedString title)
at Microsoft.PowerBI.Client.Windows.FloatingDialog.KoLoadToReportDialog.<>c__DisplayClass19_0.<TryShowDialogForQueries>b__0()
at Microsoft.PowerBI.Client.Windows.Report.<>c__DisplayClass87_0`1.<SynchronizeLooselyWithQueries>b__0()
at Microsoft.PowerBI.Client.Windows.Report.<SynchronizeLooselyWithQueriesAsync>d__88`1.MoveNext()
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
at Microsoft.PowerBI.Client.Windows.Report.SynchronizeLooselyWithQueriesAsync[T](Func`1 getTask)
at Microsoft.PowerBI.Client.Windows.Report.SynchronizeLooselyWithQueries[T](Func`1 action)
at Microsoft.PowerBI.Client.Windows.FloatingDialog.KoLoadToReportDialog.TryShowDialogForQueries(Report report, IExceptionHandler exceptionHandler, IPowerBIWindowService windowService, IPowerBIQueryErrorEditor queryErrorEditor, IEnumerable`1 queriesToApply, String loadReason, ITelemetryService modelingTelemetryService, LocalizedString title, QueryLoadMode queryLoadMode, Action`1 beforeSchemaSyncCallback, Action`1 afterSchemaSyncCallback, Boolean synchronizeLooselyWithQueries)
at Microsoft.PowerBI.Client.Windows.Services.WarningDetectionService.<DetectReportLoadWarning>b__44_4()
at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
at Microsoft.Mashup.Client.UI.Shared.WindowManager.ShowModal[T](T dialog, Func`1 showModalFunction)
at Microsoft.PowerBI.Client.AppModule.<>c__DisplayClass4_0.<Run>b__0()
at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.<>c__DisplayClass3_0.<HandleExceptionsWithNestedTasks>b__0()
at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
at Microsoft.PowerBI.Client.AppModule.Run()
at Microsoft.PowerBI.Client.Program.RunApplicationFlow(String[] args, IPowerBIRootTrace trace)
at Microsoft.PowerBI.Client.Program.Main(String[] args)

AmritKanwar
New Member

Thanks it is working now 

Akash_Varuna
Super User
Super User

Hi @AmritKanwar It might be a system related issue. Try reinstalling Power BI Desktop, clearing the cache, or running it as an administrator

Helpful resources

Announcements
August Power BI Update Carousel

Power BI Monthly Update - August 2025

Check out the August 2025 Power BI update to learn about new features.

August 2025 community update carousel

Fabric Community Update - August 2025

Find out what's new and trending in the Fabric community.

Top Kudoed Authors