I got a system message:Nextcloud is not installed - only a limited number of commands are available.What I should do? Thanks.
You have installed Nextcloud before ? Some errors?
If you have no synchronized data, the easiest way would be to uninstall and install Nextcloud.
I have'nt install Nextcloud yet.I tried to reinstall several times. P.S. I tried to install Nextcloud on clean system (Yunohost v.2.7.0) on Raspberry pi 3
Can you try installing Nextcloud from the CLI like this:
yunohost app install nextcloud --verbose
and share the logs with us on https://paste.yunohost.org?