python-nautiluspackage was installed by
pip install nautilus-terminal(as root)
gschemas.compiledfile, so I had to add
--targetdiroption as the error message implies and point to
/usr/local/lib/python2.7/dist-packages/nautilus_terminal/schemas. Then it says "Arguments 0 does not allow None as a value" for the call
settings = Gio.Settings.new_full(schema, None, None). So if you think this issue cannot be solve in a while, I can wait for the .deb. Thanks.