Error creating model

Game Modding | Call of Duty: World at War | Radiant

K-Nuto:

I have created a simple 3D square on Maya 2019 and then exported to a .xmodel_export file using the plugin 'COD tools', then used it to create a model on the Asset Manager, but I get this error:

ERROR: Can't find material [phong1] in directory 'D:\Juegos\Call of Duty World at War\raw/material_properties/' or 'D:\Juegos\Call of Duty World at War\raw/material_properties/'
aborting....

I have created a specific material which I named 'phong1' in the specified directory, hoping the Asset Manager would recognise it, but the error kept showing up. Please, any suggestion to solve it?