I’m trying to setup a Picade X HAT USB-C on my Pi 3B+ with Raspbian stretch and a working install of Retropie and I get the error message
The repository ‘Index of /raspbian stretch Release’ does no longer have a Release file.
Apt failed to update indexes!
Are additional steps required before running the curl script?
Or is stretch not compatible? I only saw notes about Wheezy incompatibility.