python slint 1.7a3, slint.load_file() can not compile .slint file

[golanguage]

python .\tmp_lion\slint_a\main2.py
Traceback (most recent call last):
  File "D:\repo\fwqa-automation\tmp_lion\slint_a\main2.py", line 3, in <module>
    components = slint.load_file("appwindow.slint")
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\liong\AppData\Local\Programs\Python\Python311\Lib\site-packages\slint\__init__.py", line 214, in load_file
    raise CompileError(f"Could not compile {path}", diagnostics)
slint.CompileError: ('Could not compile appwindow.slint', [<builtins.PyDiagnostic object at 0x000001CF192F14D0>])```

[tronical]

FWIW, I've created #5474 to improve diagnostics here. The [<builtins.PyDiagnostics ...>] is not very helpful :)

[golanguage]

Thanks @tronical.
BTW I think the reason is: the company's Group Policy disturb the Slint compiler.
The compiler seem working great on my Linux and my home computer.