I'm getting an error when trying to save as standalone on Mac
With recent Mac platforms, your app needs to be signed during the build process, using tools provided by Apple. These tools are usually available on your Mac by default, however in some circumstances they may be missing or out of date. This can result in an inability to build a standalone.
The Error Message
If you see an error something like the above, you need to replace your commandline tools. To do this, open the Terminal and enter:
sudo xcode-select --install
This will install or refresh the missing or out of date commandline tools needed to sign your app. You should now be able to successfully build Mac apps again using LiveCode.