Facing issues when installing Redmine on Openshift.

Issue

• Install problem with Redmine on Openshift.
• Getting below error when installing redmine on Openshift :

remote: checking for ImageMagick version >= 6.4.9... *** extconf.rb failed ***
remote: Could not create Makefile due to some reason, probably lack of
remote: necessary libraries and/or headers.  Check the mkmf.log file for more
remote: details.  You may need configuration options.
remote:
remote: Provided configuration options:
remote:         --with-opt-dir
remote:         --without-opt-dir
remote:         --with-opt-include
remote:         --without-opt-include=${opt-dir}/include
remote:         --with-opt-lib
remote:         --without-opt-lib=${opt-dir}/
remote:         --with-make-prog
remote:         --without-make-prog
remote:         --srcdir=.
remote:         --curdir
remote:         --ruby=/opt/rh/ruby193/root/usr/bin/ruby
remote: extconf.rb:154:in ``': No such file or directory - convert -version (Err
no::ENOENT)
remote:         from extconf.rb:154:in `block in <main>'
remote:         from /opt/rh/ruby193/root/usr/share/ruby/mkmf.rb:790:in `block i
n checking_for'
remote:         from /opt/rh/ruby193/root/usr/share/ruby/mkmf.rb:284:in `block (
2 levels) in postpone'
remote:         from /opt/rh/ruby193/root/usr/share/ruby/mkmf.rb:254:in `open'
remote:         from /opt/rh/ruby193/root/usr/share/ruby/mkmf.rb:284:in `block i
n postpone'
remote:         from /opt/rh/ruby193/root/usr/share/ruby/mkmf.rb:254:in `open'
remote:         from /opt/rh/ruby193/root/usr/share/ruby/mkmf.rb:280:in `postpon
e'
remote:         from /opt/rh/ruby193/root/usr/share/ruby/mkmf.rb:789:in `checkin
g_for'
remote:         from extconf.rb:151:in `<main>'
remote: