I am trying to install owncloud, using sudo apt-get owncloud-client. I always get the following errors:

Err:1 https://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Ubuntu_16.04 ocqt562-libqt5core5a 5.6.2-1+22.1

Protocol "http" not supported or disabled in libcurl

I already tried: downloading the newest version of curl and recompiling and reinstalling it using

./configure --with-ssl

however if I try curl --version it still lists:

curl 7.55.0 (x86_64-pc-linux-gnu) libcurl/7.55.0 
Release-Date: 2017-08-09 
Protocols: dict file ftp gopher http imap pop3 rtsp smtp telnet tftp 
Features: IPv6 Largefile UnixSockets

so there is no https protocol listed.

I am also confused about the fact that it shows: Protocol "http" not supported or disabled in libcurl even though according to the list above http should be supported.

Any help would be greatly appreciated.

I would have liked to add the following as a comment, but because I d not have enough reputation, I will add it as an edit:

  1. I am not sure apt-get is using curl, except for the fact that the error message Protocol "http" not supported or disabled in libcurl arises from apt-get install ....

How should I make this sure?

2. ./config --enable-http and than recompiling and installing did not help.

Are there any more ideas? Thank you very much!!!

Further add-on: If I just copy past into my browser:

https://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Ubuntu_16.04 ocqt562-libqt5core5a 5.6.2-1+22.1

I can download. If I then press install, I get the following error:

Detailed errors from the package manager follow: apt transaction returned result exit-failed

  • Even though you have your own version of curl installed, do you know for a fact that apt-get is using it?
    – Kusalananda
    Sep 19, 2017 at 15:58
  • Please don't create new accounts. Read howto merge accounts
    – Philippos
    Sep 20, 2017 at 8:02

1 Answer 1


It is better to first use

./configure --help

With that option you'll see all the available options and features from the software... among others, you can see

--enable-http           Enable HTTP support

which is most likely what you are looking for.

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