Quoting Carlos Dávila <cdavilam@jemila.jazztel.es>:
Hello all While compiling a map from 6 tiles obtained with splitter (manually adjusted areas.list) I get the following error: GRAVE (BlockManager): overflowed directory with max block 65534, current=65535 There is not enough room in a single garmin map for all the input data The .osm file should be split into smaller pieces first. I guess I must split some of the tiles but, how to know which one? Does it depend on the size (in MB) of the resulting maps? Regards Carlos I also create manual areas.list files. My experience is that even if I set max-nodes smaller in splitter, it can still create tiles that are too big for mkgmap. My rule of thumb is that no tile created by splitter should be bigger than ~20MB (compressed, obviously). This makes it easy to spot tiles that are too big and I've not (yet) had mgkmap fail when applying this rule.