Skip to Content
avatar image
Former Member

Error : Could not load file or assembly ' System.Web ' to run a report

Hello Experts!

I'm trying to run any report from SAP Business One, but it gives the following error:

"Modulo: MostrarVentanaReporte. Error: You can not load file or ensambaldo 'System.Web, Versión=, Culture=neutral, PublickKeyToken = b03f5f711d50a3a' or one of its dependencies module was expected to have an assembly manifest".

Have any ideas or sugestion how i can correct this error?

Previously i was having trouble viewing any report from SAP, but reinstall the SAP client on the machine and with that i could visualize these reports, but reports of AddOn not let me see any. Try reinstalling the AddOn but when reloading also showed me this error:

"Modulo: CargarCrystalReports. Error: An exception occurred in the type initializer for 'CrystalDecisions.CRystalReports.Engine.ReportDocument'. "

This error appeared at installing the AddOn, then when trying to run a report directtly from the addon, the error keeps popping up.

Someone could help me!!!

Thank you.

Add comment
10|10000 characters needed characters exceeded

  • Follow
  • Get RSS Feed

2 Answers

  • avatar image
    Former Member
    Jan 13, 2015 at 06:32 PM

    Hi Patricia,

    Can you run the report if you open it in the Crystal designer and pass manually the parameters?


    David Almazán

    Add comment
    10|10000 characters needed characters exceeded

  • Jan 14, 2015 at 01:17 AM


    Please refer SAP note:

    1758302 - Error while connecting to Crystal

    Thanks & Regards,


    Add comment
    10|10000 characters needed characters exceeded