chore: better error logging for unsupported lora weights

aphrodite/lora/utils.py

@@ -92,13 +92,12 @@ def parse_fine_tuned_lora_name(name: str) -> Tuple[str, bool]:
             is_lora_a whether the tensor is lora_a or lora_b.
     """
     parts = name.split(".")
-    assert parts[0] == "base_model"
-    assert parts[1] == "model"
-    if parts[-1] == "weight":
-        assert parts[-2] == "lora_A" or parts[-2] == "lora_B"
-        return ".".join(parts[2:-2]), parts[-2] == "lora_A"
 
-    if parts[-1] == "lora_embedding_A" or parts[-1] == "lora_embedding_B":
-        return ".".join(parts[2:-1]), parts[-1] == "lora_embedding_A"
+    if len(parts) >= 2 and parts[0] == "base_model" and parts[1] == "model":
+        if parts[-1] == "weight":
+            if parts[-2] == "lora_A" or parts[-2] == "lora_B":
+                return ".".join(parts[2:-2]), parts[-2] == "lora_A"
+        elif parts[-1] == "lora_embedding_A" or parts[-1] == "lora_embedding_B":
+            return ".".join(parts[2:-1]), parts[-1] == "lora_embedding_A"
 
-    raise ValueError(f"{name} is unsupported format")
+    raise ValueError(f"{name} is unsupported LoRA weight")