Better error for incompatible VAE

.gitignore

@@ -8,4 +8,5 @@ logs/
 *.DS_Store
 .idea
 tools/
-.vscode/
+.vscode/
+convert_*

nodes.py

@@ -559,6 +559,11 @@ class HyVideoVAELoader:
             vae_config = json.load(f)
         model_path = folder_paths.get_full_path("vae", model_name)
         vae_sd = load_torch_file(model_path, safe_load=True)
+        
+        if not "decoder.conv_norm_out.weight" in vae_sd:
+            raise ValueError("""
+Incompatible VAE model selected, the HunyuanVideoWrapper's VAE nodes require using the original VAE model: 'https://huggingface.co/Kijai/HunyuanVideo_comfy/blob/main/hunyuan_video_vae_bf16.safetensors'
+Alternatively you can also use the ComfyUI native VAELoader and the usual VAE nodes with the wrapper.""")
 
         vae = AutoencoderKLCausal3D.from_config(vae_config)
         vae.load_state_dict(vae_sd)