I use xcode 3.2.4 on snow leopard. Today when I tried to save a file on my project I get an error message saying: The document \"nameOfFile.m\" could not be saved. I tried reins
Thanks @Wayne Cochran,
When I use Xcode to save it, I rebooted the machine several times, and all failed.
So I changed to Visual Studio Code to edit and save. Then it's OK.
Just change the file editor