Unable to run fastlane sigh. "Couldn't download certificate"

Question

For some reason I'm getting Couldn't download certificate, got this instead: HTTP 405 Method Not Allowed whenever I run sigh or fastlane. I tried skipping skip_certificate_verification or skip_fetch_profiles but it still doesn't work. It was working yesterday. Has Apple Developer Portal been changed or updated today?

Is anyone also getting this?

Here's the exact error I got:

/Library/Ruby/Gems/2.0.0/gems/spaceship-0.21.1/lib/spaceship/portal/portal_client.rb:311:in `download_certificate': [!] Couldn't download certificate, got this instead: HTTP 405 Method Not Allowed (Spaceship::Client::UnexpectedResponse)

Thanks

Answer 1

According to the issues list on Sigh, you just need to update: sudo gem update spaceship

Answer 2

Haha spaceship v0.22.0 fixed it. Thanks KrauseFx!