In order to run this project, open the project with Visual Studio 2017.
Put the Google API clent credentials JSON file(File name must be "client_id.json") in D:\GoogleDriveFileManager. Steps to obtain the client credentials JSON file are included in my blog, please go to the link at the end.
Then you can simply run the project.
Read my blog to develop the project step by step from the scratch. https://jccreations-acc.blogspot.com/2018/10/authorize-your-web-application-with.html