It's my first time working with opnet.
I got this error:
<<< Recoverable Error >>>
Object repository construction failed External code file (C:\opnet\14.5.A\models\std\umts\umts_support.ex.c) compilation failed, see error messages in (C:\Users\Niloofar\op_admin\tmp\cc_err_4952) T (0), EV (-), MOD (NONE), PROC (sim_load_repos_rebuild)