Dear Maintainer,

The cient fails to connect with the cryptic message
	Protocol "" is unknown.

It gives no indication where that setting is coming from or how to fix it.

Hey,

Plese give us more information, what you have tried and what steps you did
before etc. With this information I can't help.

Regards,

sandro

Dear submitter,

as the package owncloud-client has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/969422

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Sean Whitton (the ftpmaster behind the curtain)

...

Please test the new version of owncloud-client available in Debian
experimental and reply to the bug whether this issue is fixed yet.