Quote -
    <material name="Green Car Paint" type" "carpaint">

 

There's a typo here. Should read type="carpaint"

Pose2Lux doesn't know how to merge libraries with the same name, so it's best to use a different name.

Here is the Green Car Paint without the typo and with a non-conflicting library name:

   
  
   

        "color Kd" [0.124526 0.294963 0.203289]
        "color Ks1" [0.754852 0.773852 0.500392]
        "color Ks2" [0.442047 0.629024 0.290352]
        "color Ks3" [0.227329 0.546751 0.374624]
        "float R1" [1.000000]
        "float R2" [1.000000]
        "float R3" [1.000000]
        "float M1" [1.000000]
        "float M2" [1.000000]
        "float M3" [1.000000]

   
  
   

Free stuff @ https://poser.cobrablade.net/