Bug #11866
Updated by nobu (Nobuyoshi Nakada) over 8 years ago
`gem update` fails because it tries to update io-console, which cannot update (or install) itself. Here's the full output: ~~~ λ gem install io-console Temporarily enhancing PATH to include DevKit... Building native extensions. This could take a while... ERROR: Error installing io-console: ERROR: Failed to build gem native extension. current directory: C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/io-console-0.4.4 C:/Ruby22-x64/bin/ruby.exe -r ./siteconf20151223-1500-1scn961.rb extconf.rb creating Makefile To see why this extension failed to compile, please check the mkmf.log which can be found here: C:/Ruby22-x64/lib/ruby/gems/2.2.0/extensions/x64-mingw32/2.2.0/io-console-0.4.4/mkmf.log current directory: C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/io-console-0.4.4 make "DESTDIR=" clean current directory: C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/io-console-0.4.4 make "DESTDIR=" generating console-x64-mingw32.def compiling console.c console.c:710:24: fatal error: win32_vk.inc: No such file or directory compilation terminated. make: *** [console.o] Error 1 make failed, exit code 2 Gem files will remain installed in C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/io-console-0.4.4 for inspection. Results logged to C:/Ruby22-x64/lib/ruby/gems/2.2.0/extensions/x64-mingw32/2.2.0/io-console-0.4.4/gem_make.out ~~~ The log file mentioned will be attached. This is on Windows 10 x64, using the latest found RubyInstaller 2.2.3-x64. Gem is at version 2.5.1.