Hi, i have a Model in Sketchup end exportetd it with these tools: http://www.di.unito.it/~nunnarif/sketchup_ogre_export/ Then i got a .mesh and a .material When i want to add a new Entity in my project with the new .mesh, the project build but when i want to start it, the loading screen came and then it determinate without any error what can i do?