When configured, ns found the right version of tclsh in /home/azhar/ns2install/bin/tclsh8.4 but it doesn't seem to be there anymore, so ns will fall back on running the first tclsh in your path. The wrong version of tclsh may break the test suites. Reconfigure and rebuild ns if this is a problem.
actually , when i search the /home/azhar/ns2install/bin/tclsh8.4 i remember that 'ns2install' was in my old installation directory. is it mean i need to run back my installation ./install again? or i need to make a littel changes -- AZHAR MOHD ARIS Master Candidate Of Distributed Computing University Putra of Malaysia