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2,924 PointsCan't install Testapp (Ubuntu 14.04) | json 1.8.2 problem
I'm stuck here:
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/usr/bin/ruby2.1 extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
extconf failed, exit code 1
Gem files will remain installed in /tmp/bundler20150405-27483-1v0hhhq/json-1.8.2/gems/json-1.8.2 for inspection.
Results logged to /tmp/bundler20150405-27483-1v0hhhq/json-1.8.2/extensions/x86_64-linux/2.1.0/json-1.8.2/gem_make.out
An error occurred while installing json (1.8.2), and Bundler cannot continue.
Make sure that gem install json -v '1.8.2'
succeeds before bundling.
I've tried to install son -v '1.8.2 but it just won't work. Any help?
3 Answers
Devin Scheu
66,191 PointsMaybe because you wrote son, not json?
maxwoelfle
2,924 Pointsuups, well spotted. But I've typed that wrong here, bus correct on the console.
This is what the result looks like:
max@max-ThinkPad-T400:~/projects$ sudo gem install json -v '1.8.2' Building native extensions. This could take a while... ERROR: Error installing json: ERROR: Failed to build gem native extension.
/usr/bin/ruby2.1 extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.1.0/gems/json-1.8.2 for inspection. Results logged to /var/lib/gems/2.1.0/extensions/x86_64-linux/2.1.0/json-1.8.2/gem_make.out
maxwoelfle
2,924 PointsWorked after doing this: in my case (Ubuntu 14.04) that didn't work directly and I had to do this:
$ sudo apt-get install ruby-dev
and then I could install the gem and continue. Had one more problem that was fixed by:
$ sudo apt-get install libsqlite3-dev
Hope that helps anyone who encounters the same problem.