Update app.py

app.py

@@ -378,6 +378,12 @@ def prepare_lora_cache(
     try:
         progress(0.35, desc="Building fused CPU transformer")
         tmp_ledger = ledger.with_loras(tuple(loras_for_builder))
+        # --- FIX: force tmp_ledger to use already downloaded checkpoints ---
+        tmp_ledger._distilled_checkpoint_path = checkpoint_path
+        tmp_ledger._spatial_upsampler_path = spatial_upsampler_path
+        tmp_ledger._gemma_root = gemma_root
+        # ---------------------------------------------------------------
+        assert os.path.exists(checkpoint_path), f"Checkpoint missing: {checkpoint_path}"
 
         orig_tmp_target = getattr(tmp_ledger, "_target_device", None)
         orig_tmp_device = getattr(tmp_ledger, "device", None)