Hi Greg

I found this line that uses very similar !(unpaved) type command but does NOT CAUSE an error on mkgmap compile.

highway=tertiary_link & !(mkgmap:unpaved=1) & bridge!=yes [0x08 road_class=1 road_speed=1 resolution 20 continue]

but I do have a complie error with :

(highway=residential | highway=living_street | highway=minor | highway=unclassified) & !(mkgmap:unpaved=1) & bridge!=yes [0x06 road_class=0 road_speed=2 resolution 22 continue]

Yes, you have found a bug. I will try to fix it. As a workaround you can add a highway=* This doesn't change the result but it does allow it to compile with the current version. (highway=residential | highway=living_street | highway=minor | highway=unclassified) & highway=* & !(mkgmap:unpaved=1) & bridge!=yes [0x06 road_class=0 road_speed=2 resolution 22 continue] Thanks for reporting this problem. ..Steve