From e7ce93438308cd95dce6e55ce97ffa659ae74712 Mon Sep 17 00:00:00 2001
From: Colin Basnett <cmbasnett@gmail.com>
Date: Sat, 7 Jun 2025 19:29:59 -0700
Subject: [PATCH] Improve empty material slot error message

---
 io_scene_psk_psa/psk/builder.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/io_scene_psk_psa/psk/builder.py b/io_scene_psk_psa/psk/builder.py
index 6404c73..e288f21 100644
--- a/io_scene_psk_psa/psk/builder.py
+++ b/io_scene_psk_psa/psk/builder.py
@@ -44,7 +44,7 @@ def get_materials_for_mesh_objects(depsgraph: Depsgraph, mesh_objects: Iterable[
         for i, material_slot in enumerate(evaluated_mesh_object.material_slots):
             material = material_slot.material
             if material is None:
-                raise RuntimeError('Material slot cannot be empty (index ' + str(i) + ')')
+                raise RuntimeError(f'Material slots cannot be empty. ({mesh_object.name}, index {i})')
             if material not in yielded_materials:
                 yielded_materials.add(material)
                 yield material