error when I run "php artisan serve" command

[inaciowagner]

when I run this command "php artisan serve --host=10.0.0.62 --port=8000"
I recive this error like return:
"PHP Warning: require(/var/www/html/curso-laravel/vendor/autoload.php): Failed to open stream: No such file or directory in /var/www/html/curso-laravel/artisan on line 18
PHP Fatal error: Uncaught Error: Failed opening required '/var/www/html/curso-laravel/vendor/autoload.php' (include_path='.:/usr/share/php') in /var/www/html/curso-laravel/artisan:18
Stack trace:
#0 {main}
thrown in /var/www/html/curso-laravel/artisan on line 18"

Somebody, please, help me!

[henzeb]

run composer install first?

[alfakiat]

This error throw when you missed vendor/ directory.
to solve it you should install a missing dependency as follow:

regenerate the vendor/ folder and the autoload.php

composer update

then execute this command to install required vendors

composer install

[henzeb]

you don't need the update statement at all. this would also update the composer.lock to reflect the latest versions of dependencies. Which might not what the user wants. Composer install also creates the vendor folder.

[alfakiat]

@henzeb you are right.
But this error throw when you clone a project and dont install vendors.
And you maybe would to be up-to-date with latest versions.

[semicolonn]

I have same problem to all my downloaded projects of laravel from github.

[semicolonn]

ed dependencies. It is recommended that you run composer update or composer update <package name>.
Your lock file does not contain a compatible set of packages. Please run composer update.

Problem 1
- simplesoftwareio/simple-qrcode is locked to version 4.2.0 and an update of this package was not requested.
- simplesoftwareio/simple-qrcode 4.2.0 requires ext-gd * -> it is missing from your system. Install or enable PHP's gd extension.

To enable extensions, verify that they are enabled in your .ini files:
- C:\xampp\php\php.ini
You can also run php --ini in a terminal to see which files are used by PHP in CLI mode.
Alternatively, you can run Composer with --ignore-platform-req=ext-gd to temporarily ignore these required extensions.

[myusuf591]

not run sir in amazon linux2