Model problem

[Nazaypato]

I managed to rip a Unity model and transform it with Noesis, but here are some errors:

The .dae file says: 

• Image "Image" is a MAT file. Only PNG textures are accepted. Use a tool such as XnConvert to convert the texture to PNG. If you did convert the texture already, then you did you so after exporting the model and must fix the texture paths to use the new file name.
  
• Image "Image" has a bad file path. Either the path is absolute or refers to a folder outside the file's location. Texture paths should be relative, not absolute. Please fix the file paths.
  

The .obj one says:
MTL file "unused.mtl" not found. Did you forget to select it? If not, the file is missing. OBJ models store their materials in a separate MTL file, which is necessary to load textures. If your exporter did not generate a MTL file, you will have to create one.