I am running Laravel Valet on macOS and have PHP installed via Homebrew. The self-diagnosis package seems to call the php binary that lives in /usr/bin/php, which is the macOS shipped version that lives at v7.1.23, but the app that is triggering the error is running on Valet and the homebrew shipped PHP which on my machine is at 7.2.20.

Output:

Composer dependencies (including dev) are up to date | Your composer dependencies are not up to date. Call "composer install" to update them. Loading composer repositories with package information Installing dependencies (including require-dev) from lock file Your requirements could not be resolved to an installable set of packages. Problem 1 - This package requires php ^7.2 but your PHP version (7.1.23) does not satisfy that requirement.

Which is false.