Installing Image Magick on Ubuntu 14.04

imagemagick-install-steps

sudo -i
cd
apt-get install build-essential checkinstall && apt-get build-dep imagemagick -y
wget http://www.imagemagick.org/download/ImageMagick-6.8.7-7.tar.gz
tar xzvf ImageMagick-6.8.9-1.tar.gz
cd ImageMagick-6.8.9-1/
./configure --prefix=/opt/imagemagick-6.8 && make
checkinstall

I had a similar problem and tried sudo apt install and sudo apt update, ...apt upgrade, ...apt-get partitial... purge... autoreinstall etc. etc.
but i didn't recognized that apt-get and aptitude are different ways to get packages.

At the end that was my solution:
sudo aptitude reinstall <package/app/missing deb>
an other version i found is following (but I don't tried because that worked fine):
sudo aptitude reinstall -f <package/app/missing deb pkg>

{In my case it was sudo aptitude reinstall libmagick++-6.q16-7:amd64 just to make it clear}

I hope it helps someone like it helped me

@terrysahaidak Try capital Y

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https://freetoolonline.com/imagemagick-online.html