I have tried to install Magento on a hosted server ( one.com) and when I try to run the setup I get following message
"Vendor autoload is not found. Please run 'composer install' under application root directory."
i assume I have to install a composer ? how do I do that ?
I don't have a command line in the file manager ?
any ideas ?
or can it be installed with out ?
Did you checked the system requirements?
Can you check if your hosting features are at least those Magento needs al least? (Shell access will be necessary)
To install Composer you can follow this steps: https://getcomposer.org/doc/00-intro.md#installation-linux-unix-osx