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Ruby

error occurred while installing json (1.8.2) and bundler cannot continue

Hello, i have a problem when i generate the rails app. I use the sane version of ruby and rails of the course build-a-simple-ruby-on-rails-application

Gem::Ext::BuildError: ERROR: Failed to build gem native extension. C:/Ruby193/bin/ruby.exe -r ./siteconf20150330-5036-nrllhf.rb extconf.rb creating Makefile make clean Makefile:165: *** target pattern contains no %'. Stop. make Makefile:165: *** target pattern contains no%'. Stop. make failed, exit code 2 Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.8.2 for inspection. Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/extensions/x86-mingw32/1.9.1/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.

First you should try

$ sudo gem install json -v '1.8.2'

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.