Using version ^1.3 for beyondcode/laravel-dump-server ./composer.json has been updated Loading composer repositories with package information Updating dependencies (including require-dev) Package operations: 1 install, 0 updates, 0 removals - Installing beyondcode/laravel-dump-server (1.3.0): Loading from cache Writing lock file Generating optimized autoload files > Illuminate\Foundation\ComposerScripts::postAutoloadDump > @php artisan package:discover --ansi In Connection.php line 32: Argument 1 passed to Symfony\Component\VarDumper\Server\Connection::__const ruct() must be of the type string, null given, called in /Users/k/kh/sink/v endor/beyondcode/laravel-dump-server/src/DumpServerServiceProvider.php on l ine 49