Current osm-carto (git v4.5.0+) not loading

[kocio-pl]

I'm an osm-carto developer and I work with Kosmtik, but I was interested if Tile Mill could be still used, because some people are still interested in it.

I managed to run Tile Oven on Ubuntu 17.10 and test projects were OK, but when I tried osm-carto, I got this error:

[tilemill] Started [Server Core:20009].
[tilemill] [tilemill] skipped loading project: Error: Could not open project.mml file for "openstreetmap-carto". Error was: 
[tilemill] 
[tilemill] "Unexpected token s in JSON at position 0"
[tilemill] 
[tilemill] (in /home/kocio/Dokumenty/MapBox/project/openstreetmap-carto/project.mml)

[kocio-pl]

BTW: current Tile Mill works with nodejs/npm from Ubuntu 17.10 and is able to load current osm-carto, however there is a problem with writing changes:

tilemill-project#2614
tilemill-project#2615