Hello! Getting this error when I try to sideload the game on the Playdate site:
1 year ago(+1)
Same error for me as well.
Not sure if this is the problem you are having, but I was having this same issue sideloading my zipped game as well.
I was using the windows built in zipping utility and it wouldn't sideload properly.
I re-zipped it with 7zip and it sideloaded normally, not sure why but it fixed the issue for my game.
1 year ago (+1)
I'm getting the same error
Update: I unzipped and sideloaded the PDX file and was able to download that on the device.