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Execute in the project root directory:
php artisan key:generate
From: http://www.cnblogs.com/phpper/p/7783672.html
Tag Archives: No application encryption key has been specified.
Laravel Error: No application encryption key has been specified.
If there is no. Env in the root directory of the file
1. Change the name of. Env.example and use the command copy to. Env
2
php artisan key:generate Get the password and save it to. Env automatically
3. Copy the password to config/APP
Key in PHP
4. Rerun, OK
In case of. Env, proceed to the second step directly
Neither. Please re-install laravel