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查询laravelstorage里面的log日志后,

[2016-11-18 14:21:14] production.ERROR: RuntimeException: No supported encrypter found.

 The cipher and / or key length are invalid. in /var/www/ktv/vendor/laravel/framework/src/Illuminate/Encryption/EncryptionServiceProvider.php:29

说明了密码和/或密钥长度无效。查询后发现没有.env这个文件