I have a Mac Mini (M4) running macOS Sequoia 15.3.1. I very recently downloaded and installed the current version of XCode from the app store. I have not added any extensions - it's a vanilla, un-customized, un-enhanced installation. I have two user profiles (accounts) on my Mac: one Administrator and one Standard, each using a different apple account. I am using the Standard user account to learn XCode. When I attempt to set up a project, I get an error message when Xcode initially tries to save the (provided) project template file. The error states: "Failed to save Project2.xcodeproj. The backing file has been modified outside of XCode." I am using a NAS drive to store my project file. I have also tried saving it to the Desktop. It makes no difference to the error wherever the file is being saved. Similarly, I tried changing the Standard user account to an Administrator account to see if it was a privileges problem. Again, it made no difference to the error message. (So I changed the account back to a Standard user). I have tried googling the error but I only find references to problems related to extension/add-in products to XCode: none of which have I added to my XCode installation. I am attaching screenshots of the steps through the project creation process. Hopefully someone can tell me what I am doing wrong or what the problem is. Thank you.