Unable to install Xcode, throws permission error.

[wvabrinskas]

Describe the bug
Unable to install any Xcode. It throws a permission error:

The operation couldn’t be completed. (ProcessExecutionError(process: <NSConcreteTask: 0x6000032c78e0>, standardOutput: "xip: signing certificate was \"Software Update\" (validation not attempted)\n", standardError: "xip: error: The archive “Xcode-16.3.0+16E140.xip” failed to be moved to the final destination due to the error: The operation couldn’t be completed. Operation not permitted.\n"))

However using the CLI works and prompts for my mac password.

To Reproduce
Attempt to install Xcode via the GUI.

Expected behavior
Able to install Xcode via the GUI.

Screenshots

Version

• OS: Sequoia 15.4
• Xcodes: 2.4.1

[wvabrinskas]

After giving Xcodes. Full Disk Access in privacy settings, it was able to install however I got this error now:

/Applications/Xcode-16.1.0.app: a sealed resource is missing or invalid

This could be because of previously failed installs. Going to try different ones.

[wvabrinskas]

Okay so after restarting Xcodes after that previous error messaage, I installed an Xcode I have never installed before. This actually succeeded but prompted me to install some privledged helper. Mentioned something about it's similar to sudo commands on the cli. I installed it, and the everything works properly again. Not sure why this installation of Xcodes requires Full Disk Access but my other install doesn't on my m4 mac mini running the same OS.

However it's fixed now.