ERROR Installing JSON gem on win7

Source: stackoverflow.com --- Saturday, April 23, 2016
I am using: Windows 7 ruby 2.2.4 x64bit DevKit-mingw64-64-4.7.2-20130224-1432-sfx Command: gem install json --platform=ruby ERROR: C:/Ruby22-x64/bin/ruby.exe -r ./siteconf20160423-9528-18lm3dh.rb extconf.rb creating Makefile make "DESTDIR=" clean make "DESTDIR=" generating generator-x64-mingw32.def compiling generator.c linking shared-object json/ext/generator.so Cannot export Init_generator: symbol not defined collect2.exe: error: ld returned 1 exit status make: *** [generator.so] Error 1 make failed, exit code 2 Note: I was able to install sass fine. ...

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