Here's a temporary fix: use shift-command-g in a finder window. That will open a text box. In there, paste ~/Library/Application Support/minecraft and press enter. Now scroll down and double click launcher.jar.
Here's a temporary fix: use shift-command-g in a finder window. That will open a text box. In there, paste ~/Library/Application Support/minecraft and press enter. Now scroll down and double click launcher.jar.