Hi, I got an error when doing “roslaunch realrobotlab main.launch” for part1 of the project of ROS basics.
error below:
Warning [parser.cc:723] Can not find the XML attribute ‘version’ in sdf XML tag for model: triangular_prism_direccion_obligada. Please specify the SDF protocol supported in the model configuration file. The first sdftag in the config file will beused
[ERROR] [1640657448.493862017,1.963000000]: GetModelState: model [moving_cube] does not exist
[ERROR] [1640657448.524110676,1.994000000]: GetModelState: model [moving_cube] does not exist
[ERROR] [1640657448.527436271,1.998000000]: GetModelState: model [moving_cube] does not exist