I am also having this problem. I attempted to install the Derivative Images plugin on my Omeka site and it came back with this error message: "The ImageMagick directory path is missing." Not sure where to insert the /usr/bin directory path.
I am also having this problem. I attempted to install the Derivative Images plugin on my Omeka site and it came back with this error message: "The ImageMagick directory path is missing." Not sure where to insert the /usr/bin directory path.