Blank page install setup

[magisterson]

It's my first time with Magento, I trying to install it on my server but got blank page on install wizard, no PHP errors. Does magento need something more to run installation?

My steps:

1. Download ZIP file with Magento

2. upload package on my web serwer via FTP

3. open URL with magento setup

4. Got blank page

I was trying magento 2.3 with PHP 7.2 or Magento 2.2 with PHP 7.1 and also few other configurations. Always the same problem: blank page with grey tripe on the top.

[magisterson]

II found in /var/log file called "debug.log" and got this message there:

[2019-01-28 23:14:15] main.ERROR: Error: Application is not installed yet. [] []

But what kind of aplication it could be...?

[Manish Mittal]

Hello @magisterson 

Please run below command 

composer install

 for more info follow below link:

https://magento.stackexchange.com/questions/40115/errors-installing-magento2 

[magisterson]

OK but can you tell me how to run this command? Do I have to connetct with my server via PUTTY or Windows Comand prompt? It's my first time with Magento.

[adriano_gaspar]

I run composer install but:

Loading composer repositories with package information

Installing dependencies (including require-dev) from lock file

Nothing to install or update

And error persists

[woooter]

Check if the permissions of the files are correct. I installed my Magento with my username but the web server runs under the username www-data. Both users are in the same group, so I had to sudo chmod g+w magento -R to change the group rights to allow to write on all files in the magento folder and subfolders.

[abdul_chaudhary]

the problem still persist 

[Manish Mittal]

Hello @abdul_chaudhary 

Please check PHP version and use according to Magento version.

For your ref: 

https://devdocs.magento.com/guides/v2.3/install-gde/system-requirements-tech.html