Fix Laravel: PHP Fatal error require(): Failed opening required

I removed the vendor folder then the composer.lock then I did the Composer Update command, there worked

Thanks.Its worked for me..

its saying i have to download php 7 version which is not available at net also ''mushibato pahad tuta huya h

It's work now but still need key thanks

composer update but not working

does not work! i update composer in project folder, same error occurs(((((((

thank you

thx, worked for me

hello my composer is updated but the same error is showing. please help.thank you