If there is no po file for your language, add it.
Download the pot file and copy it as your own language's po file.
cp ~/myproject/comps/comps.HEAD.pot ja.po lokalize ja.po msgfmt -cvo /dev/null ja.po
Once you finish the translation, click on the Add a new translation button at project page.
Type your new file name in the field marked or enter it here:, replacing the file name with your locale:
po/ja.po
