Error message

Error: Package: ImageMagick6-6.9.11.3-1.el7.remi.x86_64 (@remi)
           Requires: ImageMagick6-libs(x86-64) = 6.9.11.3-1.el7.remi
           Removing: ImageMagick6-libs-6.9.11.3-1.el7.remi.x86_64 (@remi)
               ImageMagick6-libs(x86-64) = 6.9.11.3-1.el7.remi
           Obsoleted By: ImageMagick-libs-6.9.11.60-1.el7.remi.x86_64 (remi)
              ~ImageMagick-libs(x86-64) = 6.9.11.60-1.el7.remi
Error: Package: ImageMagick6-c++-6.9.11.3-1.el7.remi.x86_64 (@remi)
           Requires: ImageMagick6-libs(x86-64) = 6.9.11.3-1.el7.remi
           Removing: ImageMagick6-libs-6.9.11.3-1.el7.remi.x86_64 (@remi)
               ImageMagick6-libs(x86-64) = 6.9.11.3-1.el7.remi
           Obsoleted By: ImageMagick-libs-6.9.11.60-1.el7.remi.x86_64 (remi)
              ~ImageMagick-libs(x86-64) = 6.9.11.60-1.el7.remi
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

What is the problem ?

Your problem here is the ImageMagick6 packages from remirepo. It has files that conflict with the latest ImageMagick from CentOS. You’ll need to uninstall the remirepo packages in order to do the upgrade. If removing that tries to erase too many other packages, you can try to do it in a single transaction.

Solution

yum shell
> erase ImageMagick6-libs
> update
> run