Error : CDF : Object type *Component* can't be mapped to a valid class

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Hi,


I migrated Pentaho 7.2 solution to pentaho 8.1 and I get this error when I load page WCDF. Error come from a component execution (it's a grid) created for the old version. Javascript error message in js console :

CDF : Object type *TableWithButtons* can't be mapped to a valid class


Component is open source here : https://github.com/bhericher/TableWithButtons . It was originally designed for pentaho 5.4 and I can modify component source.


I see people who have similar problem on forum. Can you help me ?
I think it's a missing JS class, but where I do create it ?

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Pic of error :
https://nsa40.casimages.com/img/2019...1459560182.jpg

[nif]

Nobody have same error in update plan ?