If you update ImageMagick then RMagick will complain that it was configured against the older version. For example:
This installation of RMagick was configured with ImageMagick 6.7.5 but ImageMagick 6.7.6-4 is in use
For me this occurred because ImageMagick is installed by my operating system’s package manager while RMagick is installed as a gem - when I updated my OS it pulled in the latest version of ImageMagick and broke RMagick.
There are two solutions to this problem:
- Downgrade ImageMagick to the version expected by RMagick.
- Update RMagick.
To update RMagick, simply reinstall it so it builds against the version of ImageMagick that’s on your system:
bpc steph # gem list rmagick
*** LOCAL GEMS ***
rmagick (2.13.1)
bpc steph # gem install rmagick -v 2.13.1
Building native extensions. This could take a while...
Successfully installed rmagick-2.13.1
1 gem installed
Installing ri documentation for rmagick-2.13.1...
Installing RDoc documentation for rmagick-2.13.1...
