Gallery App. problem with gallery.cnf

[anon21401411]

Hey,

it looks to me that this was already discussed in the existing thread below:

Gallery App doesn't work any more

Hello, after the last update of the gallery app (-> Version 16.1.0) the following error appears in the logfile: “Class ‘Symfony\Component\Yaml\Parser’ not found at /var/www/html/owncloud/apps/gallery/config/configparser.php#94” The error is caused by the missing folder ‘vendor’ in the correspondig app-folder of the gallery app - in other words, the symfony components could not be found. I tried to copy the ‘vendor’ folder from a backup but that doens’t solve the problem. What can I do?