ART error in Maya 2018: Mesh has no skinCluster assigned

Hy folks! I’m struggling with ART Plugin in Maya 2018 right now. After skeleton creation I went on to the deformation setup phase and smooth bind the root joint with my mesh. As you can see, skinCluster1 is attached to the geo and the skin weighting tool in maya works properly. Anyway ART doesn’t realise there is a skin cluster and continues to give me errors.

Any thoughts on why this is happening? I coudn’t find any solution in the ART documentary or elsewhere. Please let me know if you have any idea! Thanks in advance!!