Jeremy Edwards's questions

Has anyone else seen this problem? I'm trying to install OpenCV in Ubuntu Xenial LTS.

I've tried to uncomment the deb-src entries in my /etc/apt/sources.list and still not working.

sudo apt-get -f install libopencv-dev

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libopencv-dev : Depends: libopencv-objdetect-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libopencv-highgui-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libopencv-legacy-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libopencv-contrib-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libopencv-videostab-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libopencv-superres-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libopencv-ocl-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libcv-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libhighgui-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
                 Depends: libcvaux-dev (= 2.4.9.1+dfsg-1.5ubuntu1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Is there a Mercurial equivalent to VisualSVN Server? I want to setup an http web server for a mercurial repository that has nested repositories. Using the docs it's very difficult to get what I want.