Framework error

Question

报错了怎么办emm

Warning: require(C:\WWW\video\public/../vendor/autoload.php): failed to open stream: No such file or directory in C:\WWW\video\public\index.php on line 15

Fatal error: require(): Failed opening required 'C:\WWW\video\public/../vendor/autoload.php' (include_path='.;C:\php\pear') in C:\WWW\video\public\index.php on line 15

Answer 1

Whether composer is installed