Upgraded PHP to current, installed new wiki, and when trying to pull it up I get an error:
"MediaWiki 1.29 internal error
Installing some external dependencies (e.g. via composer) is required.
MediaWiki now also has some external dependencies that need to be installed via composer or from a separate git repo. Please see mediawiki.org for help on installing the required components."
I've installed Composer, run 'composer --dump-autoload' to create the \vendor\autoload.php file. When running 'composer update --no-dev' I get the same error every time:
Class 'Wikimedia\Timestamp\TimestampException' not found