Failed to compute tangents; need UV data in channel0 error

[ayman30382285p2wd]

Hello when importing a file from MAYA to substance i had the issue "Be carefull modifing one of these paramaters may recompute all your channels" i press enter to import and don't change any paramater then i gave me an error "Failed to compute tangents; need UV data in channel0." not sure why it happen to 4 of my models although others are working fine 
I tries all possible solutions like exporting FBX, OBJ, Clear history , freeze transforms ..etc all these tricks but still stuck, also i made the UV automatic and manual 😞 

Thanks in advance

[Cyril Dellenbach]

Hello @ayman30382285p2wd,

and thanks for your patience.

I'd advice you to check the UVs, but the issue shouldn't persist with automatic UV. Which Substance 3D Painter version are you using?

Also, would you mind sending me the asset? I'd love to take a deeper look. You can obviously send it to me personally if you don't wish to share it here.

Let me know,