Travis was using 0.6.5 successfully with node-mapnik 0.7.26 but on publishing of 0.6.6 (and thus automatic upgrade) an error started to raise:
TypeError: Object #<Object> has no method 'register_default_input_plugins'
The changelog only says support was added for 1.3.2, nothing about dropping support for older versions: https://github.com/mapbox/tilelive-mapnik/blob/v0.6.6/CHANGELOG.md#066
bump to v0.6.7 with fixed support for node-mapnik 0.7.x series - closes
thanks, tagged v0.6.7 which should fix.
Thank you, builds restarted and travis confirms.