I have a problem with importing SDF in simulator, it show this error "Error: 2: in simSDF.import@simExtSDF: <sdf>: <model>: <link>: <frame>: missing element name in element frame". When i launch this SDF in Gazebo ther is a no problem.
This is link to SDF: https://github.com/DarkoMutavdzic/SDF_D ... df_ceo.sdf