Cannot convert python file (which contains selenium) to exe

I am trying to convert python file to exe file. I've used pyinstaller.

Steps I followed:

• I opened the cmd in the folder where is my script
• I used the next comand: pyinstaller --onefile -w name.py

And I got the below error when I want to open exe. I want to mention that I use selenium to open a Mozilla Firefox Browser. enter image description here