Wednesday, July 23, 2008

BC30560: 'CrystalReportViewer' is ambiguous in the namespace 'CrystalDecisions.Web'.

This error drove me crazy but I found the fix if anyone is interested:

On the HTML Behind the Form there are duplicate declarations for the Prefix tag:
<%@ Register TagPrefix="cr" Namespace="CrystalDecisions.Web" Assembly="CrystalDecisions.Web, Version=10.0.3300.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" %>

My error was caused by having one for version 10.x and this one for version 9.x
I deleted the one for version 10.x and the error went away.

1 comment:

araynin said...


Explanation of this problem wasn't very descriptive but still helpfull, thank you