Collision doesn’t work for me

Hello experts,
I am using SDK 4.2 having COCOS 2D 0.99.5 and also COCOS2D 0.99.4. The difficulty is, when I try to create TMX file via Tiled Map Editor version QT-0.6. There, for the meta layer, I have enabled the collision facility, but collision doesn’t work for me. I wonder that same file readily works in the COCOS 2D 0.99.3 and also COCOS2D 0.99.2.
