[Tremolo-users] Problem with Brenner

Hello, Cannot run simulation with Brenner Potential (tube example). I receive the following error message: error: in ../src/parser.c:642: parse error in .potentials:5:7 (col 7): unknown symbol I cannot run successfully with Brenner on a custom simulation either. Does anyone have a test case I could use to trouble Brenner? Any idea with this error? Thanks, Dan