Hi Guys I am trying to install NS2 2.34 in Ubuntu and I am getting following error, Please help


Installing and cross-linking C API (.3) docs
Installing and cross-linking command (.n) docs
tcl8.4.18 installation succeeded.
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* Build Tk8.4.18
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make: *** No rule to make target `/home/robbert/Downloads/ns-allinone-2.34/tk8.4.18/unix/Makefile.in', needed by `Makefile'. Stop.
./install: 460: autoconf: not found
loading cache ./config.cache
checking for Tcl configuration... (cached) found /home/robbert/Downloads/ns-allinone-2.34/tcl8.4.18/unix/tclConfig.sh
checking for existence of /home/robbert/Downloads/ns-allinone-2.34/tcl8.4.18/unix/tclConfig.sh... could not find /home/robbert/Downloads/ns-allinone-2.34/tcl8.4.18/unix/tclConfig.sh
checking for tclsh... (cached) No tclsh found on PATH
checking for tclsh in Tcl build directory... /home/robbert/Downloads/ns-allinone-2.34/tcl8.4.18/unix/tclsh
configure: error: /home/robbert/Downloads/ns-allinone-2.34/tcl8.4.18/unix/tclConfig.sh is for Tcl .
Tk 8.4.18 needs Tcl 8.4.
Use --with-tcl= option to indicate location of tclConfig.sh file for Tcl 8.4.
tk8.4.18 configuration failed! Exiting ...
Tk is not part of the ns project. Please see www.Scriptics.com
to see if they have a fix for your platform.
robbert@ubuntu:~/ns-allinone-2.34$