i installed omnet++ on my ubuntu 15.10
i am trying to run omnetpp.ini on TKenv simulator but it gave an error i don't know what it is.
this is the error
Error during startup: Could not start user interface 'Tkenv'. OMNeT++ Discrete Event Simulation (C) 1992-2014 Andras Varga, OpenSim Ltd. Version: 4.6, build: 141202-f785492, edition: Academic Public License -- NOT FOR COMMERCIAL USE See the license for distribution terms and warranty disclaimer
User interface 'Tkenv' not found (not linked in or loaded dynamically). Available ones are: Cmdenv : command-line user interface
End. Starting...
$ cd /home/ibrahim/Downloads/omnetpp-4.6/samples/ijij/Simulations/radioTest $ ../../ijij -r 0 -u Tkenv -n ..:../../src omnetpp.ini
Simulation terminated with exit code: 1 Working directory: /home/ibrahim/Downloads/omnetpp-4.6/samples/ijij/Simulations/radioTest Command line: ../../ijij -r 0 -u Tkenv -n ..:../../src omnetpp.ini
Environment variables: PATH=/home/ibrahim/Downloads/omnetpp-4.6/bin::/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games LD_LIBRARY_PATH=/home/ibrahim/Downloads/omnetpp-4.6/lib:: OMNETPP_IMAGE_PATH=/home/ibrahim/Downloads/omnetpp-4.6/images
please help me.