'mvn' not fond

[Eman Ali al-Maktari]

Hi every one:

I'm a newbie to Continuum .. I installed version 1.0.3 on Linux as 
well as Maven2..

When I try to build the project I added to Continuum I get  an error 
that tells me 'mvn' not found in my path.. although I'm sure it's set 
into the PATH..

I tried to re-add the project 4 times - restarted Continuum once and 
nothing happened

I searched around, I found nothing relevant to my issue..

PLEASE HELP!!

Any answer is very appreciated..