Vendor autoload is not found. Please run 'composer install' under application root directory.

[Jaymin2WebD]

I am trying to run the magento2 set up in local XAMPP - mac.

I have installed the composer using Terminal and magento2 : I am following this link, https://schogini.biz/magento/magento2-installation.html

While updating the composer using : composer update command, facing below error,

Composer\Downloader\TransportException]                                                                             
  The "https://packages.magento.com/packages.json" file could not be downloaded: php_network_getaddresses: getaddrinf  
  o failed: nodename nor servname provided, or not known                                                               
  failed to open stream: php_network_getaddresses: getaddrinfo failed: nodename nor servname provided, or not known  

Can anyone help me in this? 

[Damian Culotta · Accepted solution]

Hi @Jaymin2WebD,

https://packages.magento.com/ to https://repo.magento.com/ ?

The first one was the old URL. You should remove that from your composer.json.

[Jaymin2WebD]

Hello @Damian Culotta,

Thanks for the solutions. Yes, It works fine now. 

Thanks again.

[Jaymin2WebD]

Hello @Damian Culotta,

It works fine but after,

The readiness check tells me that the PHP extension intl. is missing.

I tried all the solutions provided here https://community.magento.com/t5/Installing-Magento-2/Missing-PHP-extension-intl/td-p/22260/highligh...

but none works for me.

- removed ; from php_intl.dll extension under php.ini file but same issue

- i can't find xdebug.max_nesting_level  in my php.ini file

- set always_populate_raw_post_data = -1, no luck

- one of the solutions here says, copy all icu*.dll PHP to Apache = any of the dlls related to this, I can't find here, even there is no bin directory under my apache directory. 

I have installed XAMPP 7.0.26-0 on my MAC OS X Yosemite 10.10.5

XAMPP using PHP Version 7.0.26 and Apache 2.0 Handler 

this is my php.ini path: /Applications/XAMPP/xamppfiles/etc

this is my Apache path : /Applications/XAMPP/xamppfiles/apache2

I have installed XAMPP again but same issue.

Please help me out. 

Thanks,

[Damian Culotta]

Hi @Jaymin2WebD,

I will need to investigate (I use Linux so I'm not the best option to try to find a problem on Mac).

I've saw some posts here into the forums about similar situations.

Maybe you can start checking another threads. I.e:

• https://community.magento.com/t5/Installing-Magento-2/Missing-PHP-extension-intl-mcrypt-Magento-2-x-...
• https://community.magento.com/t5/Installing-Magento-2/PHP-Intl-Extension-is-missing-during-installat...
• https://community.magento.com/t5/Installing-Magento-2/Missing-PHP-extension-intl/td-p/22260

[Saiky]

Copy a composer.phar file to root directory.

then execute command as root user:

- php composer.phar install

Set all permissions and ready to go.

[virginia_sanche]

Hi I have the same problem but my file composer.json has already the change that you suggest, any other clue of what could be happening? 

[bibek_shrestha]

I have https://repo.magento.com url but also throws the same error.

[impressions_pak]

hi, 

I am facing same problem but not solved.

http://localhost/magento2-2.3/

showing errors

Autoload error

Vendor autoload is not found. Please run 'composer install' under application root directory.

i have download 

compser_setup.exe

 But not solved.

please help me.

[amit _desai]

Hello @Damian Culotta 

Can you please provide specific location of composer.json file as this file exists in all folders?

I couldn't find such url entry in my app root composer.json.