ModuleNotFoundError: No module named 'pyautogui'

运行一个自动化的程序，之后输入无反应

import pyautogui

Traceback (most recent call last):
File "C:\Users\Z\Desktop\waterRPA\waterRPA.py", line 1, in
import pyautogui
ModuleNotFoundError: No module named 'pyautogui'

要安装第三方库pyautogui

运行程序报错：
Traceback (most recent call last):
。。。
。。。
。。。
raise PyScreezeException('The Pillow package is required to use this function.')
pyscreeze.PyScreezeException: The Pillow package is required to use this function.

但是我明明都已经装好了pillow库了，刚刚又卸载重装pillow，还是无效
求教大师如何解决问题