If you're working with shared class files used by more than one project, leave that box unchecked.Edits to a copy won't propagate to your master version.Each time you add a file to your project, Xcode prompts you (somewhat indirectly) to decide whether you want to create a copy of that file or to add it by reference, as you see in Figure 4.When you check the circled box, Xcode copies the file to the destination group folder.Do you know how to control the file address so that your project won't get borked when you copy or move it to a new folder?Do you know how to find the original or fix strangely convoluted paths?
Fortunately, you're never stuck with your original choice.
Typically, Xcode ignores the copy request and leaves it as-is.
And, best of all, you don't have to create a new project.
When you want to rename your entire project, here's what you have to do.
That simple action is just the beginning of your journey.Do you know the difference between adding and copying files?