FileNotFoundError when accessing mounted Google Drive folder in Colab

[MayXiaoqingChen]

Hi, I have mounted my Google Drive at /content/drive, and I am trying to access a folder with the following code:

import os
folder_path = '/content/drive/MyDrive/UPENN/Shenlab/UNITO/Cytof_Data/Raw_Data_train'
print(os.listdir(folder_path))

However, I get the following error:
FileNotFoundError: [Errno 2] No such file or directory: '/content/drive/MyDrive/UPENN/Shenlab/UNITO/Cytof_Data/Raw_Data_train'

I have confirmed that my Drive is mounted correctly. Could this be an issue with the path or permissions?
To check, I ran:
!ls -al /content/drive/MyDrive/

And the output was:
total 0

It seems like MyDrive is mounted but empty, even though the folder exists in my Google Drive. Any help would be appreciated.

Thanks!

[KyleeCJ]

Hi, '/content/drive/MyDrive/UPENN/Shenlab/UNITO/Cytof_Data/Raw_Data_train' is the path that I used on my drive. I believe if you change that to the corresponding path where you store your data, it will show the files correctly. The data used in the manuscript can be found here http://flowrepository.org/id/FR-FCM-Z8XU and http://flowrepository.org/id/FR-FCM-Z8P9