Talk:Compiling the viewer (Mac OS X XCode)
It's usually the case that no matter which config you chose to build, Xcode falls back to building in debug mode from the IDE. You can check this from Product > Scheme, Select the "ALL_BUILD" scheme, then Product > Scheme > Edit Scheme and verify that Release or ReleaseWithDebInfo is selected. Cinder Roxley (talk) 17:54, 4 March 2015 (PST)
Install the developer command line tools by running the command xcode-select --install
This causes a path/can't find it issue Correction found: [ https://stackoverflow.com/questions/17980759/xcode-select-active-developer-directory-error]
I was having an issue while trying to install packages using npm. I got the error: "sudo xcode-select -s /Applications//Xcode.app/Contents/Developer/"
To fix this
I opened Xcode. Preferences Locations Selected the Command Lin Tools: Xcode 6.1.1 Now when installing packages with npm I no longer get errors.
Rough notes set up Mohave on a new (to me) Mac Book Pro.
Download and install Xcode 10.