Troubleshooting

Canvas not loading

If the canvas shows a blank screen:

1. Check that your project folder exists and is readable
2. Restart Floww
3. Clear the cache: Settings → Advanced → Clear Cache

API key not working

# Verify your key works
curl -H "x-api-key: YOUR_KEY" \
  -H "anthropic-version: 2023-06-01" \
  https://api.anthropic.com/v1/messages \
  -d '{"model":"claude-sonnet-4-6","max_tokens":10,"messages":[{"role":"user","content":"hi"}]}'

Nodes not connecting

Ensure both nodes are compatible types. Not all node types can be connected to each other.