Hello I try to install ruby gem json but it gives following error
`Building native extensions. This could take a while... ERROR: Error installing json: ERROR: Failed to build gem native extension.
mkmf.rb can't find header files for ruby at /usr/share/include/ruby.h
Gem files will remain installed in /home/jenkins/.gem/ruby/gems/json-2.0.2 for inspection. Results logged to /home/jenkins/.gem/ruby/gems/json-2.0.2/ext/json/ext/generator/gem_make.out`
I looked up similar post and was directed to install ruby-devel. But thats also given me a hard time.
yum install ruby-devel
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Resolving Dependencies
--> Running transaction check
---> Package ruby-devel.x86_64 0:2.0.0.598-25.el7_1 will be installed
--> Processing Dependency: ruby(x86-64) = 2.0.0.598-25.el7_1 for package: ruby-devel-2.0.0.598-25.el7_1.x86_64
--> Finished Dependency Resolution
Error: Package: ruby-devel-2.0.0.598-25.el7_1.x86_64 (RHN-rhel-x86_64-server-optional-7-1-locked)
Requires: ruby(x86-64) = 2.0.0.598-25.el7_1
Installed: ruby-2.0.0.648-29.el7.x86_64 (@RHN-rhel-x86_64-server-7-latest)
ruby(x86-64) = 2.0.0.648-29.el7
Available: ruby-2.0.0.353-20.el7.x86_64 (RHN-rhel-x86_64-server-7)
ruby(x86-64) = 2.0.0.353-20.el7
Available: ruby-2.0.0.353-22.el7_0.x86_64 (RHN-rhel-x86_64-server-7)
ruby(x86-64) = 2.0.0.353-22.el7_0
Available: ruby-2.0.0.598-24.el7.x86_64 (RHN-rhel-x86_64-server-7)
ruby(x86-64) = 2.0.0.598-24.el7
Available: ruby-2.0.0.598-25.el7_1.x86_64 (RHN-rhel-x86_64-server-7-1-locked)
ruby(x86-64) = 2.0.0.598-25.el7_1
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
Can anyone suggest me steps to install ruby-devel using yum?please