Laravel error : No supported encrypter found. The cipher and / or key length are invalid.

Run in the software folder: php artisan key:generate This command rewrited the .env file.

Laravel – No supported encrypter found. The cipher or key length are invalid. : https://www.devside.net/wamp-server/laravel-no-supported-encrypter-found-the-cipher-or-key-length-are-invalid

laracasts : https://laracasts.com/discuss/channels/forge/no-supported-encrypter-found-the-cipher-and-or-key-length-are-invalid-with-laravel-51?page=2

No supported encrypter found. The cipher and / or key length are invalid. : https://github.com/jadjoubran/laravel5-angular-material-starter/issues/60

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