I get this error when running in Ubuntu, how can we make it work?
TraCIScenarioManager connecting to TraCI server
<!> TraCI server reports unsupported TraCI API version: 21. We recommend using Sumo version 1.0.1 or 0.32.0 -- in module (veins::TraCIScenarioManagerLaunchd) RSUExampleScenario.manager (id=6), at t=0s, event #1