gem install json fails with redifinition of struct timezone/timespec

Question

I am on Windows with Ruby 1.9.3 with DevKit (all 32 bit on Win 7 64 bit). Now I try to install rails, but get an error from bundle. If I try to run (what bundle is complaini

Answer 1

Ruby 1.9.3 was compiled with GCC 4.5.2, which is DevKit DevKit-tdm-32-4.5.2-20111229-1559-sfx.exe available from RubyInstaller's download page

You downloaded the newer DevKits, that are only compatible with Ruby 2.0.0 release, as indicated in RubyInstaller announcement.

To clarify:

• Ruby 1.8.7: tdm-32-4.5.2
• Ruby 1.9.2: tdm-32-4.5.2
• Ruby 1.9.3: tdm-32-4.5.2
• Ruby 2.0.0: mingw64-32-4.7.2 (and 64bits version for 64bits Ruby)

I've added a clarification to RubyInstaller download page about this.

Hope that helps