"TCL is not part of the NS project"
Well, thank You guys that you are trying to solve my problem. Here is what I have to add:
I HAVE downloaded NS-allinone2.30 and plus while installing the distribution of Linux, I checked the checkbox saying "TCL" so I definitely have it on my system. So, I go to the Gnome terminal, and write something like "xzf -tar ns-allinone2.30.gz" , and then it unpacks itself (I suppose ?!), and then i write "./install". After that the installation begins, but after unpacking some .c files, the installation stops, when trying to unpack (I suppose ) some .tcl files, saying "TCL is not part of the ns project". Then the installation fails.
Help me up, please