HUNYUAN_FIX_APPLIED.md

# Hunyuan3D Error Handling Fix

## Issue
The Hunyuan3D generator was failing with "list index out of range" error when parsing API results.

## Root Cause
The new code had simplified error handling that didn't account for all possible result formats from the Hunyuan3D API:
- Empty tuples
- Different dict key names ('value', 'path', 'name')
- Non-dict/non-string result types

## Fix Applied
Updated `huggingface-space-v2/generators/hunyuan.py` with:

1. **Robust Result Parsing:**
   - Check for empty tuples before accessing `result[0]`
   - Try multiple dict keys: 'value', 'path', 'name'
   - Fallback to string conversion for unexpected formats
   - Validate GLB file exists before returning

2. **Enhanced Logging:**
   - Log raw result type and content
   - Log all API parameters
   - Log connection status
   - Full traceback on errors

3. **Better Error Messages:**
   - Specific message for "list index out of range" (server-side failure)
   - Specific message for timeouts (suggest lower quality)
   - Generic fallback with full error details

## Testing
To test the fix:

```bash
cd huggingface-space-v2
python test_mesh_generation.py
```

Or deploy to HF Space:

```bash
./FINAL_DEPLOYMENT.ps1
```

## Expected Behavior
- If Hunyuan3D API returns unexpected format: Clear error message suggesting retry
- If generation times out: Suggest using lower quality preset
- All errors include full traceback for debugging
- Successful generations work as before

## Deployment Status
- ✅ Fix applied to `generators/hunyuan.py`
- ⏳ Ready for deployment
- ⏳ Needs testing on HF Space

## Next Steps
1. Deploy to HF Space
2. Test with various prompts and quality settings
3. Monitor logs for any remaining issues
4. Update MCP server if needed