Python图形界面编程出现问题

Question

```python
E:\pythonProject\p1\venv\Scripts\python.exe E:/pythonProject/image/first_windows.py
Traceback (most recent call last):
  File "E:\pythonProject\image\first_windows.py", line 28, in <module>
    app=Application()
  File "E:\pythonProject\image\first_windows.py", line 18, in __init__
    self.initWidgets()
  File "E:\pythonProject\image\first_windows.py", line 21, in initWidgets
    bm=PhotoImage(file='images/serial.png')
  File "D:\Python\lib\tkinter\__init__.py", line 4064, in __init__
    Image.__init__(self, 'photo', name, cnf, master, **kw)
  File "D:\Python\lib\tkinter\__init__.py", line 4009, in __init__
    self.tk.call(('image', 'create', imgtype, name,) + options)
_tkinter.TclError: couldn't open "images/serial.png": no such file or directory

```

Answer 1

报错信息不是写了 没找到图片