Load report failed. ---> System.Runtime.InteropServices.COMException: Unsupported Operation. A document processed by the JRC engine cannot be opened in the C++ stack.

Recently we upgraded web project from VS 2005 (Framework 2.0) to VS 2013 (Framework 4.5) which has a lot of crystal reports. We install CRforVS_13_0_13 on developer m/c. But when we launch the reports, we get the following error:

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An Error has occured during Page_Load Details are as follows

    CrystalDecisions.Shared.CrystalReportsException: Load report failed. ---> System.Runtime.InteropServices.COMException: Unsupported Operation. A document processed by the JRC engine cannot be opened in the C++ stack. at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object& DocumentPath, Int32 Options) at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object& DocumentPath, Int32 Options) at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened() --- End of inner exception stack trace --- at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened() at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename, OpenReportMethod openMethod, Int16 parentJob) at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename) at REPORTS_FUNDEVAL_rptfundeval.Page_Load(Object sender, EventArgs e) in c:\ProgressProjects_VS2013\IntranetPortal\ProgReports\FUNDEVAL\rptfundeval.aspx.cs:line 54

"

I created a new web project for testing, created a new crystal report (with in Visual studio) and it worked fine. Then I tried to launch crystal report from the migrated project (with out database connection), it too worked fine. I checked the references and every thing looked good.

But when I run to run a report from migrated project, I get the above error. Is there some thing to do with access rights? Unable to figure it out.

Any help will be really appreciated.

Thanks

Rama