How to Resolve the No application encryption key has been specified Error【Laravel】
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Table Of Contents
A guide to resolving the No application encryption key has been specified error that may occur when trying to display a page in Laravel.
Error Message
Illuminate\Encryption\MissingAppKeyException
No application encryption key has been specified
Solution
Run the following command:
php artisan key:generateThis usually resolves the issue.
If you encounter an error like the following:
The stream or file "/var/www/html/laravel-docker/src/storage/logs/laravel.log" could not be opened in append mode: Failed to open stream: Permission denied
The exception occurred while attempting to log: file_put_contents(/var/www/html/laravel-docker/src/.env): Failed to open stream: Permission denied
Context: {"exception":{}}
This error occurs because there is no write permission for .env. Grant permissions with the following command:
chmod -R 777 .envExplanation
This error occurs when there is no string specified in the APP_KEY field in the .env file.
When you create a new Laravel project, the APP_KEY is generated automatically. However, if you cloned the project from GitHub, .env is not included in version control, so the APP_KEY is not shared.
Even if you create a .env file by copying from .env.example, the APP_KEY will be empty, resulting in this error.
php artisan key:generateRunning this command will populate the APP_KEY field in .env, resolving the error.
That's all. I hope this helps someone.
