TypeError Tkinter Designer

[nadeerathilakarathna]

Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\tkinter_init_.py", line 1921,
in call
return self.func(*args)
File "C:\Users\user\Tkinter-Designer\gui\gui.py", line 72, in btn_clicked
designer.design()
File "C:\Users\user\Tkinter-Designer\tkdesigner\designer.py", line 29, in design
code = self.to_code()
File "C:\Users\user\Tkinter-Designer\tkdesigner\designer.py", line 23, in to_code
frame = Frame(window_data, self.figma_file, self.output_path)
File "C:\Users\user\Tkinter-Designer\tkdesigner\figma\frame.py", line 29, in init
self.elements = [
TypeError: 'NoneType' object is not iterable