This problem just started for me too on 2018-04-06 (Y-M-D).
Unable to create directory. Error details: Cannot create a file when that file already exists Filename on disk: Minecraft Path: C:/Users\steve\OneDrive\Minecraft Exists: true
Launcher version: 2.0.1003 Minecraft release: 1.12.2 Windows 10 Home, version 1709, OS build 16299.309
I have no troubles on my other computer though. The only difference in the specs listed above is that it's Windows Pro. Maybe Windows Home handles OneDrive directories differently than Windows Pro and the launcher hasn't accounted for this difference.
Steven Hultgren
This problem just started for me too on 2018-04-06 (Y-M-D).
Unable to create directory.
Error details: Cannot create a file when that file already exists
Filename on disk: Minecraft
Path: C:/Users\steve\OneDrive\Minecraft
Exists: true
Launcher version: 2.0.1003
Minecraft release: 1.12.2
Windows 10 Home, version 1709, OS build 16299.309
I have no troubles on my other computer though. The only difference in the specs listed above is that it's Windows Pro. Maybe Windows Home handles OneDrive directories differently than Windows Pro and the launcher hasn't accounted for this difference.