How to fix error error-is-subst-target in Windows 11

Solution Steps

1. 1 Press Windows key + R, type 'cmd', and press Ctrl+Shift+Enter to open Command Prompt as administrator. This ensures you have the rights to change drive mappings.
2. 2 Type 'subst' and press Enter to list all current virtual drives. Identify the drive letter that is causing the error. Note the target path shown.
3. 3 Check if the target path exists. Use 'dir C:\TargetFolder' (replace with the actual path) to see if the folder is accessible. If the folder is missing, you need to either restore it from backup or change the subst mapping to a valid folder.
4. 4 If the target folder exists but is on a network drive, ensure the network connection is active. Use 'net use' to check network drives.
5. 5 To fix the mapping, you can remove the invalid subst drive and recreate it with a valid target. For example, 'subst X: /d' removes the drive, then 'subst X: C:\NewFolder' creates a new one.
6. 6 After fixing, try launching the program again.