Solution:
At installation time, two scripts are created to set the environment properly. One is ispgui, which launches
the Project Navigator. For all other usage from the command-line, the setup_lv.(c)sh script must be 'sourced'.
This will apply all appropriate paths and other environment variables to your shell. Try one of the following
commands:
source isptools/ispcpld/bin/setup_lv.sh
--or--
source isptools/ispcpld/bin/setup_lv.csh