Getting a “bad interpreter” error when using brew

Question

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/rub         


        

Answer 1

I got bad interpreter: No such file or directory error when used xcpretty and xcpretty-travis-formatter on upgraded MacOS.

To solve it

gem install xcpretty
gem install xcpretty-travis-formatter

That is why I can recommend you to reinstall failed component gem install

#For example error looks like
/usr/local/bin/xcpretty-travis-formatter: /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby: bad interpreter: No such file or directory

#use
gem install xcpretty-travis-formatter