Alert me Crystal Reports dont work in IIS

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ASP.NET

reporting

Hello.

I have an app w C# & MySQL using Crystal Reports. In my development environment, the app works using. But when I published, the app shows me this error:

CrystalDecisions.CrystalReports.Engine.InternalException:
No se pudo abrir la conexión.
No se pudo abrir la conexión.
{E403D116-A2DD-482D-947B-8D4BFFE851A8}.rpt
---> System.Runtime.InteropServices.COMException:
No se pudo abrir la conexión.
No se pudo abrir la conexión. Reporte
{E403D116-A2DD-482D-947B-8D4BFFE851A8}.rpt

at CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions
, RequestContext pRequestContext)
at CrystalDecisions.ReportSource.EromReportSourceBase.
ExportToStream(ExportRequestContext
reqContext)
--- End of inner exception stack trace ---
at CrystalDecisions.ReportAppServer.
ConvertDotNetToErom.ThrowDotNetException(Exception e)
at CrystalDecisions.ReportSource.
EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.
Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.
Engine.ReportDocument.ExportToStream(ExportOptions options)
at CrystalDecisions.CrystalReports.
Engine.ReportDocument.ExportToHttpResponse
(ExportOptions options, HttpResponse response, Boolean asAttachment, String attachmentName)
at CrystalDecisions.CrystalReports.
Engine.ReportDocument.
ExportToHttpResponse(ExportFormatType formatType, HttpResponse response,
Boolean asAttachment, String attachmentName)

I installed in the server the redistribute.


Anyone can help me?

Thanks.

Ivo