what is this yellow mark beside mesh meaning? it looks no error there
enjack As warmanw answered earlier, that warning means that something is wrong with the skin setting. Please see the "Attachment warnings" section of the Spine User Guide for more information: http://esotericsoftware.com/spine-skins#Attachment-warnings
It might be bound to a bone that is added to a skin which is not active at the moment.
