Drill thru report Error in based on DMR moedl

[chinnucognos]

Hello techies,

Drill thru report(child report) throwing error while running from parent report output :

XQE-PLN-0057   
         At least one invalid child was found for a node of type 'CogMDXCompleteTuple'.   
Details
RSV-SRV-0042 Trace back:RSReportService.cp......

I was not able to figure it out in code,Can you please share solution that what will be the issue and fix in report?
Please let me know if I need to give more precise information abt this issue

thanks in advance

[gpollock]

IBM shows a similar error for Cognos 10.2.1, saying you need a fix pack.  If that doesn't apply to you, take a look at all your tuples.  Maybe there was some small item you added to your report that isn't right.  Can you make a very simple report, get it working, and then keep adding to it to get this?  Is it only this parent to this child that causes the issue?

[chinnucognos]

Hi Pollock,

thanks for ur prompt reply.
It is showing for all similar drill thru reports(used same package) which is having same parameters in cognos 10.2.1 version.
Interesting point is that sometimes report is working fine without throwing this error,but most of times Error is occurring!