Artisan serve got error

gistfile1.txt

 ✝  ~/code/locksourcing/trendle   master  ls
app            composer.json  database       public         routes         tests
artisan        composer.lock  package.json   readme.md      server.php     webpack.mix.js
bootstrap      config         phpunit.xml    resources      storage
 ✝  ~/code/locksourcing/trendle   master  php artisan serve
sPHP Warning:  require(/Users/ryanjeff/code/locksourcing/trendle/bootstrap/../vendor/autoload.php): failed to open stream: No such file or directory in /Users/ryanjeff/code/locksourcing/trendle/bootstrap/autoload.php on line 17
PHP Stack trace:
PHP   1. {main}() /Users/ryanjeff/code/locksourcing/trendle/artisan:0
PHP   2. require() /Users/ryanjeff/code/locksourcing/trendle/artisan:16

Warning: require(/Users/ryanjeff/code/locksourcing/trendle/bootstrap/../vendor/autoload.php): failed to open stream: No such file or directory in /Users/ryanjeff/code/locksourcing/trendle/bootstrap/autoload.php on line 17

Call Stack:
    0.0031     355584   1. {main}() /Users/ryanjeff/code/locksourcing/trendle/artisan:0
    0.0052     357384   2. require('/Users/ryanjeff/code/locksourcing/trendle/bootstrap/autoload.php') /Users/ryanjeff/code/locksourcing/trendle/artisan:16

PHP Fatal error:  require(): Failed opening required '/Users/ryanjeff/code/locksourcing/trendle/bootstrap/../vendor/autoload.php' (include_path='.:') in /Users/ryanjeff/code/locksourcing/trendle/bootstrap/autoload.php on line 17
PHP Stack trace:
PHP   1. {main}() /Users/ryanjeff/code/locksourcing/trendle/artisan:0
PHP   2. require() /Users/ryanjeff/code/locksourcing/trendle/artisan:16

Fatal error: require(): Failed opening required '/Users/ryanjeff/code/locksourcing/trendle/bootstrap/../vendor/autoload.php' (include_path='.:') in /Users/ryanjeff/code/locksourcing/trendle/bootstrap/autoload.php on line 17

Call Stack:
    0.0031     355584   1. {main}() /Users/ryanjeff/code/locksourcing/trendle/artisan:0
    0.0052     357384   2. require('/Users/ryanjeff/code/locksourcing/trendle/bootstrap/autoload.php') /Users/ryanjeff/code/locksourcing/trendle/artisan:16

You need to run composer install to load the project packages to your local.