Here are some things that might help:
- Cloning Joplin into a subdirectory of
C:\Users\YourUserNameHere\ instead of C:\Project (or maybe checking the folder permissions on C:\Project).
- This might help if the current Windows user doesn't have the correct permissions for the
C:\Project folder.
- Running
yarn install as corepack yarn install.
- It looks like you've already fixed the
corepack enable issue, but if the fix is somehow causing issues, the above might help.