Microsoft Graph Error - Resource not found for the segment 'root:' when uploading file to OneDrive

Question

When working on this tutorial on Uploading File to OneDrive from Microsoft Graph OneDrive team, I\'m getting the following error at the last line of the code shown

Answer 1

.ItemWithPath(file.Path) isn't the path to the file you're uploading, it is the destination path.

For example, if you wanted to upload "SomeFile.txt" to the root of your OneDrive, you would use:

graphClient.Me.Drive // The drive
  .Root // The drive's root folder
  .ItemWithPath("SomeFile.txt") // The destination to write the upload to

The reason this is currently failing is OneDrive doesn't know what to do with a Windows drive path (i.e. C:\Files\Documents\SomeFile.txt). It expects a URL safe drive path (i.e. /Documents/SomeFile.txt).