laravel: in Encrypter.php line 81: mcrypt_encrypt(): Size of key is too large for this algorithm

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laravel: in Encrypter.php line 81: mcrypt_encrypt(): Size of key is too large for this algorithm

use a key length of 16, 24 or 32 bytes

You need to edit /app/config/app.php and change the key on line 81.

'key' => env('APP_KEY', 'qwertyuiop[...................'),
'cipher' => MCRYPT_RIJNDAEL_128,

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