You maybe have seen this error “Numpy not found” after you upgraded your ComfyUI Version or used a new Workflow. As this errormessage is annoying a short explanation what happened before we go to the fix.
The packages that you have in your ComfyUI Workflow are compiled with a specific Numpy version and as you upgrade your ComfyUI or use a newer Workflow you could run in the issue of incompatibility. So we downgrade the Numpy version to make it compatible again.
Therefore for Windows Users you need to navigate into your ComfyUI folder which could like thisC:\comfyui.git\app\env\Scripts
For Pinokio Users you need to go hereC:\pinokio\api\comfyui.git\app\env\Scripts
Now in the scripts folder type “CMD” and press enter
!NOW stop your ComfyUI to proceed before proceeding!
Nice you now have a command window open in your comfyUI but need to start the virtual environment.
So now write “activate” to start the virtual environment for the next step
Now check which Numpy version you have by typing “pip show numpy”
Here you can see that I have a newer Numpy Version which was incompatible with my installed packages in ComfyUI. Therefore I downgrade it now with the next step
pip install --force-reinstall numpy==1.26.4
After this step you can start ComfyUI again and check if you still get the same error message it should be gone.
