OSX homebrew error when install gdb: ''Uninitialized constant Homebrew::FormulaClassUnavailableError" -


i having problems installing gdb on os x el capitan 10.11.6.

i ran brew install homebrew/dupes/gdb in terminal, , got

error: uninitialized constant homebrew::formulaclassunavailableerror please report bug:     https://git.io/brew-troubleshooting /usr/local/library/homebrew/cmd/install.rb:151:in `rescue in install' /usr/local/library/homebrew/cmd/install.rb:82:in `install' /usr/local/library/brew.rb:84:in `<main>'

what mean , how fix that? please me.

edit: after run brew doctor got these:

warning: /usr/local/bin isn't writable.  can happen if "sudo make install" software isn't managed homebrew. if formula tries write file directory, install fail during link step.  should change ownership , permissions of /usr/local/bin user account.   sudo chown -r $(whoami) /usr/local/bin  warning: have macports or fink installed:   /opt/local/bin/port  can cause trouble. don't have uninstall them, may want temporarily move them out of way, e.g.    sudo mv /opt/local ~/macports  warning: suspicious git origin remote found.  non-standard origin, homebrew won't pull updates main repository. current git origin is:   https://github.com/homebrew/brew  unless have compelling reasons, consider setting origin remote point @ main repository, located at:   https://github.com/homebrew/homebrew.git  warning: have uncommitted modifications homebrew if surprise you, should stash these modifications. stashing returns homebrew pristine state can undone should later need reason.     cd /usr/local/library && git stash && git clean -d -f

is cause of homebrew or other reasons?


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