I am a new ROS user. I wrote a SDF file and tried including a *.dae file I have using model://mymodelname/meshes/filename.dae but the mesh is not appearing in Gazebo.

Then I tried creating a new folder under .gazebo/models but I get a message saying permission denied. I am not sure how to go about since it does not get the information from my package and the model therein.

How can I alleviate the problem I have. Any help would be appreciated.

Erhan