~/workspace/ns-3.25_home$ ./waf --run="lena-simple-epc"Waf: Entering directory `/home/fourgreen/workspace/ns-3.25_home/build'
Waf: Leaving directory `/home/fourgreen/workspace/ns-3.25_home/build'
Build commands will be stored in build/compile_commands.json
'build' finished successfully (1.349s)
UE (0, 0, 0) attached to eNB (0, 0, 0)
UE (60, 0, 0) attached to eNB (60, 0, 0)
msg="cannot TX while already TX: the MAC should avoid this", file=../src/lte/model/lte-spectrum-phy.cc, line=524
terminate called without an active exception