Invalid active developer path error after upgrading to El Capitan

I ran into this error trying to push to git, when I typed git init.

xcrun: error: invalid active developer path
(/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

I tried the following solutions.

xcode-select —install
sudo xcode-select -switch
sudo xcode-select —install
brew doctor
brew update
brew upgrade
brew cleanup

Solution 1:

This is all you need to do:

$ xcode-select --install

Solution 2:

You can select command line tools from the XCode Preferences shown in the screenshot below.

You will get a prompt for password.

Solution 3:

1)

try typing in "xcode-select -print-path" and see if the path you see is the path you're expecting for your current Xcode version.

2)

If you go to:

https://developer.apple.com/downloads/

(you'll need to sign in with your Apple Developer account)

Once there, you'll see links for "Command Line Tools". It sounds like you need to install MacOS 10.11 Command Line Tools for Xcode 7.