"Error document empty" when converting collada to urdf

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Hello, i'm trying to convert a .dae file from solidworks to .urdf and i run into some errors. Here are the error messages:

rosrun collada_urdf collada_to_urdf bloc_camera.dae test.urdf
;; Input file is: bloc_camera.dae
Error:   Error document empty.
         at line 100 in /build/urdfdom-VnCcob/urdfdom-1.0.4+ds/urdf_parser/src/model.cpp
ERROR: Model Parsing the xml failed

I'm running ROS noetic with moveit1 on Ubuntu 20.04 on VM. Thank your for your help