[ns] Error while doing "make" in ns

[Badieh Traboulsi]

Hello,

When I do "make ns" I get the following error

trace/cmu-trace.o: In function `hdr_swarm::access(Packet const*)':
cmu-trace.cc:(.text._ZN9hdr_swarm6accessEPK6Packet[hdr_swarm::access(Packet const*)]+0x7): undefined reference to `hdr_swarm::offset_'
collect2: ld returned 1 exit status
make: *** [ns] Error 1

Anyone knows how to solve this?

Thanks.

Regards,
Badieh