Installing on MAMP

I am having problems getting this to work on MAMP (MAc OS X LAMP app)

Are my paths OK?

define ('__DOCROOT__', '/Applications/MAMP/htdocs');
define ('__VIRTUAL_DIRECTORY__', '');
define ('__SUBDIRECTORY__', '');
define ('__DEVTOOLS_CLI__', _DOCROOT_ . _SUBDIRECTORY_ . '/qcodo/_devtools_cli');
define ('__INCLUDES__', _DOCROOT_ .  _SUBDIRECTORY_ . 'includes');

I keep getting the error:
Remote access to “/_devtools/codegen.php” has been disabled.
To allow remote access to this script, set the ALLOW_REMOTE_ADMIN constant to TRUE
or to “::1” in “configuration.inc.php”.

However, I have:
define('ALLOW_REMOTE_ADMIN', true);