ConEmu setup + Laravel + PHP

First time I am trying coding and PHP, and laravel. This is all new to me. Can someone help me out with how to solve these steps? 4) Copy the .env file and place it in www/Treiner. 5) Open composer.lock in www/Treiner with a text editor. Search for LaravelCasacadingConfig. a. Look at psr-0 in the section. b. Replace psr-0 with psr-4.

via Chebli Mohamed