Ok, error messages are gone now, but I still dont get it. In Basecamp cycleways are still avoided (when carpool avoidance is selected) even if I set highway=cycleway { set mkgmap:carpool=no }. So Basecamp still sees some carpool flag on those highways with access=no, I cant get rid of this in the style file??
Argh, I am sorry.
Of course you have to use "set mkgmap:carpool=no".
The second line does not work because I forgot about the following rule taken from the documentation: "There used to be some restrictions on the kind of expression you could use. Now the only restriction is you must have at least one test that depends on a tag existing. So you cannot match on everything, regardless of tags, or test for an object that does not have a tag."
The second line must look like: highway=* & mkgmap:carpool!=* { set mkgmap:carpool=yes }
WanMil