Laravel RuntimeException inEncrypter.php line 43: The only supported ciphers are AES-128-CBC and AES-256-CBC with the correct key lengths

Laravel RuntimeException inEncrypter.php line 43: The only supported ciphers are AES-128-CBC and AES-256-CBC with the correct key lengths
```
php artisan key:generate  
```
运行上面代码即可解决
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原文地址：https://www.cnblogs.com/hjyang2012/p/6098172.html