I just started on Gazebo for a uni project and just ran into my first problem:
Here I am running Gazebo 8.3 on Ubuntu 16.04. When I select some object in Gazebo the simulator freezes, showing this error message in the terminal:
gzclient: /build/ogre-1.9-mqY1wq/ogre-1.9-1.9.0+dfsg1/OgreMain/include/OgreAxisAlignedBox.h:252: void Ogre::AxisAlignedBox::setExtents(const Ogre::Vector3&, const Ogre::Vector3&): Assertion `(min.x <= max.x && min.y <= max.y && min.z <= max.z) && "The minimum corner of the box must be less than or equal to maximum corner"' failed. escalating to SIGKILL on server
When I run the same world.sdf (including materials etc) on my Macbook under Gazebo 8.2, the textures are loaded correctly.