litellm - 💡(How to fix) Fix [Bug]: Ollama Vision VLM calls not working due to missing pillow [1 comments, 2 participants]

Request Failed Error Code: 500 Message: litellm.APIConnectionError: ollama image conversion failed please run pip install PillowTraceback (most recent call last): File "/app/.venv/lib/python3.13/site-packages/litellm/llms/ollama/common_utils.py", line 28, in _convert_image from PIL import Image ModuleNotFoundError: No module named 'PIL' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/app/.venv/lib/python3.13/site-packages/litellm/main.py", line 3988, in completion response = base_llm_http_handler.completion( model=model, ...<14 lines>... client=client, ) File "/app/.venv/lib/python3.13/site-packages/litellm/llms/custom_httpx/llm_http_handler.py", line 415, in completion data = provider_config.transform_request( model=model, ...<3 lines>... headers=headers, ) File "/app/.venv/lib/python3.13/site-packages/litellm/llms/ollama/completion/transformation.py", line 448, in transform_request _convert_image(convert_to_ollama_image(image)) for image in images ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/app/.venv/lib/python3.13/site-packages/litellm/llms/ollama/common_utils.py", line 30, in _convert_image raise Exception( "ollama image conversion failed please runpip install Pillow" ) Exception: ollama image conversion failed please run pip install Pillow . Received Model Group=gemma4:31b-it-q8_0 Available Model Group Fallbacks=None LiteLLM Retried: 3 times, LiteLLM Max Retries: 3

TL;DR

Install the Pillow library using pip to resolve the ollama image conversion failure.

Guidance

• The error message indicates a ModuleNotFoundError: No module named 'PIL', which suggests that the Pillow library is not installed.
• The issue can be fixed by installing Pillow using pip, as manually done by the user in the container image.
• To prevent similar issues in the future, consider including Pillow in the container image's dependencies.
• Verify that the fix worked by running the chat request to the ollama model again and checking for the 500 error.

Example

No code snippet is necessary in this case, as the solution involves installing a library using pip.

Notes

The provided solution assumes that the container image is based on a Python environment where pip is available. If this is not the case, alternative installation methods may be necessary.

Recommendation

Apply workaround: Install Pillow using pip, as this directly addresses the reported error and has already been verified by the user to resolve the issue.