On a vagrant started up by dist-kobo-devel scripts there are already three grunt processes running for enketo-express. So running
grunt in dkobo folder presents you with “Port 35729 is already in use by another process”. Changing ‘livereload: true’ instances to e.g ‘livereload: 35730’ in Gruntfile of one of the projects allows for running simultaneous grunts and solves the problem.
Are you okay with this setting on (which of the) dkobo or enketo-express projects? Do you want a PR?