Cloudron Forum

I have only PDF and video MP4 and work perfect.

I can ignore that error, but the log file is chaotic.
Hope to fix it one day.
Thanks for the answer.

I have install nextcloud 18.0.2 and with fresh installation I find this error on log file: ```
Error: ResourceLocator can not find a web root (root: /app/data/apps/settings, file: css/settings/47cd-8c31-settings.css....

Someone said this problem is "On Cloudron the apps folder is also symlinked", so the root apps show this error.
What I can do to fix it?

@girish thank you. work like a charm.

I have follow this guide:
https://www.allerstorfer.at/nextcloud-install-preview-generator/
and
https://www.allerstorfer.at/imagemagick-fix-policymap/

Thats all

I can show you:
This image Is without the mod in Nextcloud Cloudron:

And this image show how it work in my Nextcloud:

With the mod you can see a preview of PDF, Image and if you want OFFICE ecc... (but I do not need)

Hi to everybody, I need to enable preview PDF and Video on my Nextcloud.
I need to execute this command:

apt install ffmpeg imagemagick ghostscript

and this

nano /etc/ImageMagick-6/policy.xml

to change some parameter.

If I try to execute: apt install ffmpeg imagemagick ghostscript

I receive this message:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package ghostscript is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package ffmpeg is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

W: Not using locking for read only lock file /var/lib/dpkg/lock
E: Package 'ffmpeg' has no installation candidate
E: Package 'ghostscript' has no installation candidate