Can't Rotate Model in Tutorial

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I've just started using gazebo and I'm going through the manipulating models tutorial here: https://gazebosim.org/docs/fortress/m...

When I click on rotate mode nothing happens in the simulation, and the following errors pop up at the command line: [GUI] [Err] [MeshDescriptor.cc:56] Mesh manager can't find mesh named [gizmo_rotate]

[GUI] [Err] [Ogre2MeshFactory.cc:562] Cannot load null mesh [gizmo_rotate]

[GUI] [Err] [Ogre2MeshFactory.cc:125] Failed to get Ogre item for [gizmo_rotate]

[GUI] [Err] [Ogre2Visual.cc:134] Cannot attach null geometry.

Does anyone know how to fix this?