We are migrating some applications from Crystal Reports 9 and VB6 to C# and Crystal Reports 13.0. We are using same old .rpt without modifications. Some of them contain sub reports with linked parameters pointing to formula fields, and when we try to print or export the reports they are returning an error like this.
Error in formula Record_Selection: '{TRN_FILE.TRN_POST_DT} <= {?Pm-@MonthOf} ' This field is not known.
Opening the .rpt file with older version (CR9) and taking a look to Change subreport links presents the ?Pm-@MonthOf parameter but when we use newer version of crystal reports (SAP CR 2013) to open the same file the linked parameter disappears from sub report links.
Any idea of why this could be happening? , the only way we have found to make reports work in newer version is adding linked parameters again in design mode, but having a lot of reports with this same problem we want this to be our last option.
Thanks for your comments.
