Steps to Reproduce:
- Run git clone --depth 1 https://gerrit.wikimedia.org/r/mediawiki/core.git to download the dev version. Found a notice that external packages needed to be downloaded.
- I ran composer update and found that it requires composer 1 and downloaded that from the site.
- Now I run php composer.phar update --no-dev and then it installed all packages successfully.
- But when the Mediawiki installation page came it looks like the following:
I expected to see the installation page with the options to choose from.