osx-mountain-lion

ERROR: While executing gem … (Gem::FilePermissionError)

I have checked all the other similar answers and none was exactly like mine, neither did any of those solutions work for me. gem environment and sudo gem environment give the same result: rvm -v : rvm 1.22.3 ruby -v : ruby 1.8.7 OSX 10.8.4 echo $PATH /usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/home/ava/.rvm/bin:/home/ava/bin gem install <gem-name> gives whereas I am … Read more

What is the “Illegal Instruction: 4” error and why does “-mmacosx-version-min=10.x” fix it?

From the Apple Developer Forum (account required): “The compiler and linker are capable of using features and performing optimizations that do not work on older OS versions. -mmacosx-version-min tells the tools what OS versions you need to work with, so the tools can disable optimizations that won’t run on those OS versions. If you need to run on older … Read more