| # 🔧 SOLUTION: HuggingFace Authentication Issue | |
| ## Problem Identified | |
| Your AI backend is returning "I apologize, but I'm having trouble generating a response right now. Please try again." because **ALL HuggingFace Inference API calls require authentication** now. | |
| ## Root Cause | |
| - HuggingFace changed their API to require tokens for all models | |
| - Your Space doesn't have a valid `HF_TOKEN` environment variable | |
| - `InferenceClient.text_generation()` fails with `StopIteration` errors | |
| - The backend falls back to the error message | |
| ## Immediate Fix - Add HuggingFace Token | |
| ### Step 1: Get a Free HuggingFace Token | |
| 1. Go to https://huggingface.co/settings/tokens | |
| 2. Click "New token" | |
| 3. Give it a name like "firstAI-space" | |
| 4. Select "Read" permission (sufficient for inference) | |
| 5. Copy the token (starts with `hf_...`) | |
| ### Step 2: Add Token to Your HuggingFace Space | |
| 1. Go to your Space: https://huggingface.co/spaces/cong182/firstAI | |
| 2. Click "Settings" tab | |
| 3. Scroll to "Variables and secrets" | |
| 4. Click "New secret" | |
| 5. Name: `HF_TOKEN` | |
| 6. Value: Paste your token (hf_xxxxxxxxxxxx) | |
| 7. Click "Save" | |
| ### Step 3: Restart Your Space | |
| Your Space will automatically restart and pick up the new token. | |
| ## Test After Fix | |
| After adding the token, test with: | |
| ```bash | |
| curl -X POST https://cong182-firstai.hf.space/v1/chat/completions \ | |
| -H "Content-Type: application/json" \ | |
| -d '{ | |
| "model": "unsloth/DeepSeek-R1-0528-Qwen3-8B-GGUF", | |
| "messages": [{"role": "user", "content": "Hello! Tell me a joke."}], | |
| "max_tokens": 100 | |
| }' | |
| ``` | |
| You should get actual generated content instead of the fallback message. | |
| ## Alternative Models (if DeepSeek still has issues) | |
| If DeepSeek model still doesn't work after authentication, try these reliable models: | |
| ### Update backend_service.py to use a working model: | |
| ```python | |
| # Change this line in backend_service.py: | |
| current_model = "microsoft/DialoGPT-medium" # Reliable alternative | |
| # or | |
| current_model = "HuggingFaceH4/zephyr-7b-beta" # Good chat model | |
| ``` | |
| ## Why This Happened | |
| - HuggingFace tightened security/authentication requirements | |
| - Free inference still works but requires account/token | |
| - Your Space was missing the authentication token | |
| - Local testing fails for the same reason | |
| The fix is simple - just add the HF_TOKEN to your Space settings! 🚀 | |