无法读取instance.png，因为文件丢失、权限不正确、格式不受支持或无效

Question

我有以下代码等待图标出现，然后再单击它：

import pyautogui as py
from pyautogui import *

# Open BlueStacks from taskbar:
py.moveTo(2094, 1059, 1.2)
py.click()

# Wait for maximise icon to appear: 
status = False

while (status == False):
    if(py.locateOnScreen('maximise.png') is not None):
        py.click(py.center(py.locateOnScreen('maximise.png')))
        status = True

但是，当我运行脚本时，我得到以下结果：

[alex@silo Projects]$ /sbin/python /home/alex/Documents/Projects/foodOrderer/main.py
Traceback (most recent call last):
  File "/home/alex/Documents/Projects/foodOrderer/main.py", line 9, in <module>
    max = py.locateOnScreen('maximise.png')
  File "/usr/lib/python3.9/site-packages/pyautogui/__init__.py", line 175, in wrapper
    return wrappedFunction(*args, **kwargs)
  File "/usr/lib/python3.9/site-packages/pyautogui/__init__.py", line 213, in locateOnScreen
    return pyscreeze.locateOnScreen(*args, **kwargs)
  File "/usr/lib/python3.9/site-packages/pyscreeze/__init__.py", line 372, in locateOnScreen
    retVal = locate(image, screenshotIm, **kwargs)
  File "/usr/lib/python3.9/site-packages/pyscreeze/__init__.py", line 352, in locate
    points = tuple(locateAll(needleImage, haystackImage, **kwargs))
  File "/usr/lib/python3.9/site-packages/pyscreeze/__init__.py", line 206, in _locateAll_opencv
    needleImage = _load_cv2(needleImage, grayscale)
  File "/usr/lib/python3.9/site-packages/pyscreeze/__init__.py", line 169, in _load_cv2
    raise IOError("Failed to read %s because file is missing, "
OSError: Failed to read maximise.png because file is missing, has improper permissions, or is an unsupported or invalid format

我以前遇到过这种格式错误的问题，从未在网上找到解决方案。 我正在使用ArchLinux和VisualStudio代码

这是我已经尝试过的：

• Don't understand error reading improper permissions-这篇文章的唯一回复。我得到另一个类型错误：预期的图像名称
• chmod a+rwx/home/alex/Documents/Projects（文件位于此处）

Answer 1

我遇到了同样的问题，并通过使用图像文件的绝对路径解决了它