Invisible layer in Cocos2D -

i new cocos2d , went through many tutorials on tiled map . , , have made 1 tmx map using tiled. in made 1 meta layer. now, stuck @ 1 issue, want invisible meta layer in map .i used code

[self.meta.visible = no]; 

meta layer first tile layer. want invisible better view & trying collision detection .i have added layer & set property following

cctmxlayer * layer;  @property (atomic,retain) cctmxlayer * layer;  [self addchild:self.meta]; 

now, don't know how this?

try code. use meta layer name according tilemap.

cctmxlayer *meta = [tilemap layernamed:@"meta"]; meta.visible = no; 

see image, names case sensitive.