I have also installed mglinstaller. In the following directory /home/......./bin/glnx86 -> I can see the dependency files for tracegraph.
Also I tried $gedit ~/.bashrc by adding Quote:
>LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/...../tracegraph202/bin/glnx86 at end of bashrc.
after i tried, > chmod 777 trgraph,
then I typed ./trgraph, but it is showing error.