what are the new set up for the animator controller in unity 5

hey guys, i have 2 versions of unity installed in my pc: unity5 and unity 4.6
the problem I’m facing is really weird !!! i set up the animator controller with the animations and the parameters then i set up the script in unity 5 …o try to run the game but no animation is played , i spent more than 3 days try to figure up the problem but i didnt find anything , then I decided to try my project in unity 4.6 and the magic happen ,all animations are played normally and everything was good …so my question is :is there a new set up for mecanim in unity 5?

i just reinstalled unity 5 and everything is fine thank you