Getting osm2pgsql usage error while installing OSM Bright for TileMill

Question

I'm trying to install OSM Bright for TileMill, following this tutorial: https://www.mapbox.com/tilemill/docs/guides/osm-bright-mac-quickstart/#osm2pgsql

I installed PostGres.app + postgresql 9.2 on MAC OS X. I've been getting this osm2pgsql error and I was wondering how to fix this:

osm2pgsql SVN version 0.84.0 (64bit id space)

Usage error. For further information see:
osm2pgsql -h|--help

[name]:~ [name]$ which osm2pgsql
/usr/local/bin/osm2pgsql

Answer 1

You need to provide osm2pgsql with the proper argument(s).

Go to http://metro.teczno.com and look for your city. If it’s available, download the .osm.pbf version of the extract.

Then you should be able to successfully run this command.

osm2pgsql -c -G -d osm -S /usr/local/share/osm2pgsql/default.style ~/Downloads/your_file.osm.pbf

Please see Chapter 2 for more information on the arguments needed to download and import OSM data.