Fix ModuleNotFoundError

✅ Solution

The "ModuleNotFoundError: No module named 'peft'" error typically occurs because the peft package is either not installed or not installed in the correct environment. Fix this by first ensuring your virtual environment is activated, then install or reinstall peft using `pip install peft`. If using gradient checkpointing from recent peft versions, also make sure you have transformers>=4.35.0 installed.