require(vendor/autoload.php): failed to open stream

Question

I know that this issue has been posted many times, but for me it seems to be a different problem.

Indeed, this error

Warning: require(vendor/autol

Answer 1

@Bashir almost helped me but I needed:

composer update --no-scripts

I found the answer here: https://laracasts.com/discuss/channels/general-discussion/fatal-error-class-illuminatefoundationapplication-not-found-in-pathtoprojectbootstrapappphp-on-line-14?page=0

Answer 2

Change the auto_prepend_file property on php.ini

; Automatically add files before PHP document. 
;http://php.net/auto-prepend-file 
auto_prepend_file =

Answer 3

First, review route inside index.php

require __DIR__.'/../vendor/autoload.php';

$app = require_once __DIR__.'/../bootstrap/app.php';

in my case the route did not work, I had to review the directories.

Answer 4

I was able to resolve by removing composer and reinstalling the proper way. Here is what I did:

• sudo apt remove composer
• sudo apt autoclean && sudo apt autoremove
• Installed globally with the instructions from: https://getcomposer.org/doc/00-intro.md Download from: https://getcomposer.org/installer global install: mv composer.phar /usr/local/bin/composer (Note: I had to move mine to mv composer.phar /usr/bin/composer)

I was then able to get composer install to work again. Found my answer at the bottom of this issue: https://github.com/composer/composer/issues/5510