The field name nstrace.tcpdbg.tcpack should be nstrace.tcpdbg.tcprtt
This issue was migrated from bug 11964 in our old bug tracker.
Original bug information:
Reporter: Anil
Status: RESOLVED FIXED
Product: Wireshark
Component: Dissection engine (libwireshark)
OS: All
Platform: x86
Version: 2.0.1