If I may bump this issue, I have encountered the same set of circumstances.
I have a fresh installation of macOS 10.12.2; Installed both laravel/installer and laravel/valet. The composer.phar is installed in the /usr/local/bin/directory. I have created an alias to run composer.
composer is aliased to `php /usr/local/bin/composer.phar'
laravel new blog
generates this response
Crafting application... sh: composer: command not found Application ready! Build something amazing.
The site does not run. In order to get the site to work, I had to run these additional steps:
cd blog composer install —no-scripts cp .env.example .env php artisan key:generate
If I create the site using composer, the site works as expected.
composer create-project --prefer-dist laravel/laravel blog
I am fairly certain that the error from composer: command not found is where .env file is created and keyed. It is also where the dependancies are installed. Does anyone have thoughts on where to begin to troubleshoot this?
It appears that using an alias for composer is not the right thing to do. I removed the alias and then renamed /usr/local/bin/composer.phar to /usr/local/bin/composer. Now running 'laravel new blog' runs without any errors. The new site has a .env file and a defined site key.