Would be great to have the Tasks app at the Nextcloud App Store.
=> https://apps.nextcloud.com/
Nextcloud 11 is almost released and it would be really sad if the users of the app would have to disable it because they don't get a new version via the app store.
I can't upload the app archive from https://github.com/nextcloud/tasks/releases/download/v0.9.4/tasks.tar.gz to apps.nextcloud.com. The appstore gives the error
No possible app folder found. App folder must contain only lowercase ASCII characters or underscores
although there is only one toplevel folder named tasks.
@LukasReschke or @BernhardPosselt Could you give me a hint what I do wrong?
@raimund-schluessler Can you post the signature that you used for uploading?
although there is only one toplevel folder named tasks.
Apparently it's './tasks' - there's a folder . in the archive root.

Damn, my file manager didn't show me the . folder. It was created due to a problem with my make file. Thanks a lot for the help @ChristophWurst and @LukasReschke. Now the upload worked flawlessly.
The Tasks app is in the Nextcloud appstore now. Installing the app via appstore worked without problems for me
Validation saved the day :D imagine the fucked up bug reports from users xD
Thanks, works like charm!