Symptom
Using native connection to Informix database, when you create a new parameter, you get the error.
'Logon failed. Error in File UNKNOWN.RPT: Unable to connect: incorrect log on parameters. (RptControllers.dll)'
Cause
If
the report contains LOV, dynamic parameters or
even subreports, Crystal Reports use more than one connection
to the same database.
That
means that the report uses multi-threaded data sources.
Resolution
Crystal
Reports does not support the native connection to Informix database
as multi-threaded data source.
The native
connection of Informix database cannot be shared between different
threads, the ODBC connection is recommended to avoid the
issue.
Keywords
Error 'Logon failed. Error in File UNKNOWN.RPT: Unable to connect: incorrect log on parameters. (RptControllers.dll)' in Crystal Reports , 2999755 , KBA , BI-RA-CR , Crystal Reports designer or Business View Manager , Bug Filed
Product
Crystal Reports 2008 V0 ; SAP Crystal Reports XI ; SAP Crystal Reports XI R2