The only supported ciphers are AES-128-CBC and AES-256-CBC with the correct key lengths. laravel 5.3

Question

I installed a new fresh copy of Laravel 5.3 using composer but I\'m getting this error:

The only supported ciphers are AES-128-CBC and AES-256-CBC wit

Answer 1

You need to have .env on your appication folder then run:

$ php artisan key:generate

If you don't have .env copy from .env.example:

$ cp .env.example .env