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I'm getting this error when I try to run any brew command.
Holger-Sindbaeks-MacBook-Air:~ holgersindbaek$ brew help
-bash: /usr/local/bin/brew: /usr/bin/ruby: bad interpreter: No such file or directory
I have absolutely no idea on how to fix this and been searching for a long time without answer.
None of the above worked for me, so I kept browsing and found this answer, https://stackoverflow.com/a/24225960/1359088 which did fix brew for me. He says in step 1 to install XCode 6 command line tools, but doesn't say how; use this command:
After upgrading to macOS High Sierra, get it fixed with following commands:
sudo gem install cocoapods