I recently tried to install ns2 and nam, the network simulator and network animator in Debian jessie. They worked fine in the previous version of Debian wheezy but in jessie I got:
There seems to be a mix up with tcl/tk version 8.5 and 8.6 in the packages. I tracked down a solution that can be helpful to others:
nam: [code omitted because of length] : version conflict for package "Tcl": have 8.5.17, need 8.6 while executing "package require Tcl 8.6"
- Add the packages from wheezy to your sources.list
- Downgrade the package libtclcl1. Maybe like this:
aptitude install libtclcl1/wheezy aptitude hold libtclcl1