Dear All,
I had this problem since first version of Crystal Reports for Visual Studio 2010. I already had apply all SPs to try to fix it, but all them doesn't work. The last version was SP2 of CR for VS2010. My environment is Web Application with IIS 6.0 in a Windows Server 2003 32 bits with .NET Framework 2.0 (3.5 SP1). The error doesn't occurs frequently, but is a big problem when it happens.
The Full error is:
COMException (0x80004005): The process cannot access the file because it is being used by another process.
]
CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions, RequestContext pRequestContext) +0
CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext) +505
CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext) +651
CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToStream(ExportOptions options) +117
CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToStream(ExportFormatType formatType) +103
...
Best Regards,
Max