I was facing the error described at https://github.com/cweiske/grauphel/issues/72#issuecomment-519173520
In case anyone finds themselves here, and is running Debian buster, I was able to fix relatively easily. The latest version of php-oauth in bullseye (currently 2.0.5+1.2.3- 1+b1) depends on PHP 7.4 so isn't trivially installable on buster via apt pinning etc. However, the previous version (2.0.5+1.2.3-1, I guess before a mass rebuild) is still binary compatible with buster and PHP 7.3, so I was able to fetch the binary from snapshot and install directly: http://snapshot.debian.org/package/php-oauth/2.0.5%2B1.2.3-1/#php-oauth_2.0.5:2b:1.2.3-1 Cheers, Rob
