propel-gen: command not found (phing)

propel-gen: command not found (phing)

I've installed the Propel ORM in my Zend Framework project with the
following commands:
pear channel-discover pear.phing.info
pear install phing/phing
pear install Log
But always when I try to run propel-gen I get the following error:
propel-gen: command not found
I've already looked at this post on stackoverflow and tried the following:
When I check $ pear list I get the following:


When I run the following command:
pear config-get bin_dir

I get this: /Applications/MAMP/bin/php/php5.4.4/bin
I've checked my .bash_profile:
PATH=/Applications/MAMP/bin/php/php5.4.4/bin:/Applications/MAMP/Library/bin:$PATH
export PATH
I assume that this is correct?
Don't really know what I'm doing wrong ... Can anybody help me get further?