Unable to open any PBIX

[Anonymous]

I am having two issues that are basically making my whole data estate and data visualization processes within PowerBI completely inoperable.

#1 -  Anytime I try to open a PBIX I am met with the following error:

"We weren't able to restore the saved database to the model".

ExecuteXmla failed with result

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.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
at Microsoft.PowerBI.Client.Program.Main(String[] args)

PFE_SYSTEM,PFE_METADATA_LOAD_FAILED

The following system error occurred: Class not registered
An error occurred when loading the 'feb67b54-6dbc-405f-ad38-0cac728e81b7', from the file, '\\?\C:\Users\khari\Microsoft\Power BI Desktop Store App\AnalysisServicesWorkspaces\AnalysisServicesWorkspace_c4c68a2e-7fa8-4134-9b2a-3b7763180ac2\Data\feb67b54-6dbc-405f-ad38-0cac728e81b7.0.db.xml'.

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.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.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
at Microsoft.PowerBI.Client.Program.Main(String[] args)

# 2 -Anytime I try to create a new PBIX and add data sources, I run into the following error:

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

This issue occurs with flat files, workbooks, SQL server, Cosmos, ADLS2, no matter what I can't do anything. I've updated my laptop, reinstalled Power BI Desktop, reinstalled all the MS DB Drivers (OLE, ODB) and nothing works. 

[Anonymous]

Hi @Anonymous 

For your first question , did you publish your report to Power BI Service ? If yes, you can try to download the .pbix file from Power BI Service and then open it in Desktop . 

For your second question . What is your current Desktop version? If it is not the latest version, it is recommended to uninstall the previous version and install the latest version . 

Best Regards,
Community Support Team _ Ailsa Tao