Xcode build failure “Undefined symbols for architecture x86_64”
It looks like you are missing including the IOBluetooth.framework in your project. You can add it by: Clicking on your project in the upper left of the left pane (the blue icon). In the middle pane, click on the Build Phases tab. Under “Link Binary With Libraries”, click on the plus button. Find the IOBluetooth.framework … Read more