The file exists and it says no such file or directory

Traceback (most recent call last):
File "c:\Users\Ahmed\Documents\Studies\Algorithme & Programmation\Python\Cin ex\main.py", line 72, in <module>
win = loadUi("pnl.ui")
^^^^^^^^^^^^^^^^
File "C:\Users\Ahmed\AppData\Local\Programs\Python\Python311\Lib\site-packages\PyQt5\uic_init_.py", line 238, in loadUi
return DynamicUILoader(package).loadUi(uifile, baseinstance, resource_suffix)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Ahmed\AppData\Local\Programs\Python\Python311\Lib\site-packages\PyQt5\uic\Loader\loader.py", line 66, in loadUi
return self.parse(filename, resource_suffix)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Ahmed\AppData\Local\Programs\Python\Python311\Lib\site-packages\PyQt5\uic\uiparser.py", line 1020, in parse
document = parse(filename)
^^^^^^^^^^^^^^^
File "C:\Users\Ahmed\AppData\Local\Programs\Python\Python311\Lib\xml\etree\ElementTree.py", line 1218, in parse
tree.parse(source, parser)
File "C:\Users\Ahmed\AppData\Local\Programs\Python\Python311\Lib\xml\etree\ElementTree.py", line 569, in parse
source = open(source, "rb")
^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'pnl.ui'