"Item not found" Issue while extracting Onedrive files into SPFx Webpart using MS Graph API.

Hi Team , 

Need a help . I'm trying to extract OneDrive files from SPFx Webpart using MS Graph API but I'm unable to get the Information from the below API

Documentation : [ https://developer.microsoft.com/en-us/graph/graph-explorer ]

API URL : https://graph.microsoft.com/v1.0/me/drive/root/children

Please have a look at the below Information and let me know for any further more information and help me to resolve the Issue ASAP.

Background : 

• SPFx Webpart with react framework
• Node Version : v8.17.0
• SharePoint Framework Version : 1.11.0
• Graph API Query : Get all the items in my drive (https://graph.microsoft.com/v1.0/me/drive/root/children)

exception : {"error":{"code":"itemNotFound","message":"Item not found","innerError":{"date":"2021-06-29T19:10:09","request-id":"","client-request-id":""}}}

Thanks in advance , 

Regards,

Babu.