AR20 Trial Version, VS2026 .NET CORE 10 Blazor WebAPI SectionReport() error

AR20 Trial Version, VS2026 .NET CORE 10 Blazor WebAPI SectionReport() error

Posted by: brian.trueax on 28 May 2026, 1:07 pm EST

• 

  brian.trueax

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  Posted 28 May 2026, 1:07 pm EST

  Hello,
  
  I’m getting the following error when instantiating a SectionReport object.
  
  System.UnauthorizedAccessException: Access to the path ‘.data’ is denied.
  
  at System.Threading.Mutex.CreateMutexCore(Boolean initiallyOwned, String name, NamedWaitHandleOptionsInternal options, Boolean& createdNew)
  
  at System.Threading.Mutex…ctor(Boolean initiallyOwned, String name)
  
  at GrapeCity.ActiveReports.Internal..ReadFile(String dir, String fileName)
  
  at GrapeCity.ActiveReports.Internal..CreateInstanceData()
  
  at GrapeCity.ActiveReports.Internal..LoadProduct(String folder)
  
  at GrapeCity.ActiveReports.Internal..GetDesignTimeLicenseCore(String code)
  
  at GrapeCity.ActiveReports.Internal..GetDesignTimeLicenseWithCache(String feature,  productDescriptor)
  
  at GrapeCity.ActiveReports.Internal..GetDesignTimeLicense(String feature,  productDescriptors)
  
  at GrapeCity.ActiveReports.Internal.

  1.GetLicense(LicenseContext context, Type type, Object instance, Boolean allowExceptions)    at System.ComponentModel.LicenseManager.ValidateInternalRecursive(LicenseContext context, Type type, Object instance, Boolean allowExceptions, License& license, String& licenseKey)    at System.ComponentModel.LicenseManager.Validate(Type type, Object instance)    at GrapeCity.ActiveReports.SectionReport.<>c__DisplayClass492_0.<GetLicense>b__0(Boolean _)    at GrapeCity.ActiveReports.AssertionHelper.<>c__DisplayClass0_0.<ExecuteWithMemberAccessAssert>b__0(Boolean access)    at GrapeCity.ActiveReports.AssertionHelper.ExecuteWithAssert(CodeAccessPermission permission, Action

  1 action)
  
  at GrapeCity.ActiveReports.AssertionHelper.ExecuteWithMemberAccessAssert(Action`1 action)
  
  at GrapeCity.ActiveReports.SectionReport.GetLicense(Object obj)
  
  at GrapeCity.ActiveReports.SectionReport.ValidateLicense()
  
  at GrapeCity.ActiveReports.SectionReport…ctor(SectionDocument document)
  
  at GrapeCity.ActiveReports.SectionReport…ctor()

  This is the code I’m currently testing:

  using (var report = new SectionReport())
  
  {

  string rpxPath = Path.Combine(Directory.GetCurrentDirectory(), "Reports", "TestReport.rpx");
  
  using (var xmlReader = new XmlTextReader(rpxPath))
  {
      report.LoadLayout(xmlReader);
  }
  
  report.DataSource = data;
  report.Run();
  
  var exporter = ReportExporterFactory.CreateExporter(ExportType.PDF);
  return exporter.Export(report.Document); 
  

  }

  Where does it try to create this .data file? When I run VS as Admin, I still get the same error. Can someone point me in the right direction?
  
  Thanks!
  
  -Brian

• 

  anand.sinha

  

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  Posted 29 May 2026, 4:41 am EST

  Hi Brian,

  Unfortunately, we were unable to replicate the issue on our end when creating a new Blazor API sample and running a Code-Based SectionReport in the API call.

  However, we did get a package missing error for System.Security.Permissions which got resolved after installing the mentioned package.

  We have attached our application. Could you please try running it on your end to test if your issue persists?

  If the issue persists, please make sure your Visual Studio terminal that runs the project has access to the path ‘C:\ProgramData\SA3.config’ and ‘C:\ProgramData\SA3\products\ARP’ as these contain the .data file, also make sure that the file is present on your machine.

  If sa3client is missing from your machine, you can download it using the command ‘dotnet tool install -g sa3client’.

  However, if the issue persists, please share a minimal sample that replicates the issue and also let us know about your ActiveReports version, OS version, .NET Version, and Visual Studio version to be able to replicate the issue on our end.

  Thanks,
  
  Anand

  BlazorApp2.zip