Laravel project run problem.

 PHP Warning:  require(../vendor/autoload.php): failed to open stream: No such file or directory in ..\artisan on line 18

Warning: require(../vendor/autoload.php): failed to open stream: No such file or directory in ..\artisan on line 18

PHP Fatal error:  require(): Failed opening required '../vendor/autoload.php' (include_path='C:\xampp\php\PEAR') in ..\artisan on line 18

Fatal error: require(): Failed opening required '../vendor/autoload.php' (include_path='C:\xampp\php\PEAR') in ..\artisan on line 18

Solution:

=>Run this command=composer update