Problem with upgrade from github sources

[dxd]

Hi, I am upgrading from 0.9.39 to the latest from github repository but after opening: serverIP/froxlor I have only blank page. In error log I have found:

 

PHP Warning:  require(/var/www/html/froxlor/vendor/autoload.php): failed to open stream: No such file or directory in /var/www/html/froxlor/lib/init.php on line 19

 

init.php on line 19 :

require dirname(__DIR__) . '/vendor/autoload.php';

but autoload.php file and /vendor directory doesn't exist.
Where to find it and how to fix this error ?

[d00p]

I hope you know that the current master branch is TESTING - do not use it in production. For installation of current git-master see https://github.com/Froxlor/Froxlor/wiki/Install-froxlor-from-git-sources (especially part 3)

If you just want to update from 0.9.39 to the latest stable version, then I suggest you follow the update guide here: https://github.com/Froxlor/Froxlor/wiki/Updating-Froxlor

[dxd]

Yes I know that master branch can be unstable.
I didn't know about composer (never used before), I have already installed and now everything is ok and working.
Thank you very much for your quick help!