VOC error “ModuleNotFoundError: No module named ‘numpy”

“ModuleNotFoundError: No module named ‘numpy” error occurred when iam trying to generate .class file for my .py code using VOC ………please help…thnx in advance

(VoCProject) C:\Users\User\Desktop\virtualEnvs\VoCProject\actualProject>python RGBtoGray.py Traceback (most recent call last): File “sample.py”, line 1, in import numpy as np ModuleNotFoundError: No module named ‘numpy’