FileNotFoundError
builtins.FileNotFoundError
Stack trace
Traceback (most recent call last):
File "app.py", line 12, in <module>
model = Llama(model_path="models/gguf-model.gguf") # FileNotFoundError here
File "llamacpp/llama.py", line 45, in __init__
with open(model_path, "rb") as f:
FileNotFoundError: [Errno 2] No such file or directory: 'models/gguf-model.gguf' Why it happens
This error occurs because the llama.cpp Python binding tries to open the GGUF model file at the specified path but cannot find it. The path may be incorrect, the file may not exist, or the file permissions may prevent access.
Detection
Check if the model file path exists on disk before initializing the Llama model. Use os.path.exists() or handle FileNotFoundError exceptions to detect missing files early.
Causes & fixes
The GGUF model file path is incorrect or misspelled.
Verify and correct the model_path string to point exactly to the existing GGUF model file location.
The GGUF model file was not downloaded or saved to the expected directory.
Download the GGUF model file from the official source and place it in the specified directory before loading.
File permissions prevent reading the GGUF model file.
Ensure the running user has read permissions on the GGUF model file and its parent directories.
Code: broken vs fixed
from llamacpp import Llama
model = Llama(model_path="models/gguf-model.gguf") # FileNotFoundError here
print("Model loaded")import os
from llamacpp import Llama
model_path = os.environ.get("LLAMA_MODEL_PATH", "models/gguf-model.gguf")
if not os.path.exists(model_path):
raise FileNotFoundError(f"Model file not found at {model_path}")
model = Llama(model_path=model_path) # Fixed: verified path exists
print("Model loaded successfully")Workaround
Wrap the model loading code in try/except FileNotFoundError, and provide a fallback path or prompt the user to download the model file.
Prevention
Use environment variables or configuration files to manage model paths and validate file existence during application startup to avoid runtime crashes.