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

Check your .env file if APP_KEY is not set, it is the issue, Now run php artisan key:generate then run php artisan config:cache

it will set an APP_KEY key in your .env file.

If APP_KEY is already set run the same commands. It will update this key.