Laravel 5.4 : The only supported ciphers are AES-128-CBC and AES-256-CBC with the correct key lengths

Question

It is Laravel 5.4 setup of my web app. one thing is happening repeatedly on page load. and because of that, I am not able to get data on my page.

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Answer 1

Make sure your app config has key and cipher set. Also make sure your .env file does not have an empty APP_KEY entry. Finally run:

php artisan key:generate