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

I had this path in my machine:

C:/xampp5.0/htdocs/project-recordando-symfony/project-recordando-symfony

Then I ran composer install or/and composer update and it returned this error:

ErrorException ZipArchive::extractTo...

That error is because your path is too much long, I changed to:

C:/xampp5.0/htdocs/p-symfony/*

and worked!

Answer 2

Create composer.json file with requisite library for ex:

{
    "require": {
        "mpdf/mpdf": "^6.1"
    }
}

Execute the below command where composer.json exists:

composer install

In case of Drupal :

Use the web root folder of drupal to include autoload for ex:

define('DRUPAL_ROOT', getcwd());
require_once DRUPAL_ROOT . '/vendor/autoload.php';

In case of other systems: Use the root folder variable or location to include the autoload.php

Answer 3

run composer update. That's it

Answer 4

In your project folder, the vendor folder is missing so you got this error:

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

When you download the project through git, the project is downloaded without the vendor folder

You need /vendor because all your packages are there, including all the classes Laravel uses. The vendor directory contains your Composer dependencies.

The solution is simple, Just run this command:

composer update --no-scripts 
composer update

• composer update --no-scripts It will Skips execution of scripts defined in composer.json file.
• composer update It will update your depencencies as they are specified in composer.json file.

With this command, you will re-create the vendor folder in your project and after that your project will start working normally.

Answer 5

For me Just run this command first

composer dump-autoload

to add vendor folder.

then run this command

composer update --no-scripts

to update composer.

Answer 6

If you get the error also when you run

composer install

Just run this command first

composer dump-autoload

This command will clean up all compiled files and their paths.