问题
Note: This question is not a duplicate of these questions:
- Laravel 5.2 not reading env file
- Laravel 5.2 .env sometimes doesn't load in time
I'm getting this error:
production.ERROR: exception 'RuntimeException' with message 'No supported encrypter found. The cipher and / or key length are invalid.' in /home/coder/.local/share/Trash/files/myblog/vendor/laravel/framework/src/Illuminate/Encryption/EncryptionServiceProvider.php:45
When I tried dd($config['key']); it returns 'null'. Even the database environment variables return null. So it means that Laravel is not reading from the .env file.
- What is the reason?
- How to fix this?
right now I've solved the issue by manually specifying key in Config/app.php file and setting the database values in Config/database.php file
I suspect that I've got the permissions/owner wrong on the .env file. I'm developing in Elementary OS
回答1:
To be sure that the latest version of you .env file is being read make sure you run php artisan config:clear.
You may also want to run php artisan key:generate to generate a key for your app (if you haven't already done so). It wouldn't hurt to check the your cipher is AES-256-CBC or better in config/app.php at the same time.
If this is a local dev environment and you think permissions to the .env file might be wrong, check them like so:
# Check the permissions
cd /path/to/app
ls -l -a
# IF required change the file permissions
sudo chmod 660 .env
Note
Also be aware that depending on your development environment, some $_ENV variables can be set in places like homestead.yaml or nginx.conf.
回答2:
I experienced this. And as a result of some hint given by @Spholt above, the reason was that apache(user www-data) could not read .env due to file permissions. So i changed the file permissions to ensure that the server (apache) had read permissions to the file. Just that and boom, it was all working now!
来源：https://stackoverflow.com/questions/39377914/laravel-5-2-is-not-reading-from-env-on-ubuntu