Composer error while installing magento

Question

I am trying to install Magento multistore and I have installed composer but still, I am getting this error..

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

Answer 1

It sounds like you have installed the composer.exe but not actually run the command composer install in your terminal .

This will install all your dependencies.

You should probably read the documentation here .