Software :: NAM With NS 2.34 - No Event Type Or Button

My OS is F12 with Gnome desktop, after many alternatives I installed ns-allinone-2.34 so ns-2.34 run very well:
[dreams@localhost ~]$ ns
% exit

When I try nam, I got this error:
[dreams@localhost ~]$ nam
nam:
[code omitted because of length]
: no event type or button # or keysym
while executing
"bind Listbox <MouseWheel> {
%W yview scroll [expr {- (%D / 120) * 4}] units }"
invoked from within
"if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} {
bind Listbox <MouseWheel> {
%W yview scroll [expr {- (%D)}] units }
bind Li..."

I m not familiar with Linux so I don't understand what it means. I want to tell you that I can run nam when I access to the folder with this command ./nam and I can see the samples so I run simulation. I visit some pages when they speak about gcc and their compatibilities with F12. When I use Makefile I got access dined.