Why can I run this locally and not over X?

I am trying to run qtcreator. It powers up fine on the local (Ubuntu 16.4) box, but when I try to run it over X to a Mac I get this: (qtcreator:3893): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Failed to connect to socket /tmp/dbus-LglOS2bxyZ: Connection refused libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast Unrecognized OpenGL version Unrecognized OpenGL version Searching these messages usually suggests that this is a driver problem and suggest a fix on the (local) box, but that doesn't seem relevant here. Any ideas as to how I might fix this so I can run it remotely? (NB: the qtcreator process is still running when this happens, just 'headless' and useless)