Possible issue with Xcode install via native App Store "Download and install large apps to separate disk"

[rromanchuk]

Diagnostics log reports

2025-03-05 19:28:02 | SimulatorDevicesMonitor.swift:L149 | ERROR: Error Domain=NSCocoaErrorDomain Code=4 "The file “simctl” doesn’t exist." UserInfo={NSFilePath=/Volumes/[external-drive-location]/Applications/Xcode.app/Contents/Developer/usr/bin/simctl} | The file “simctl” doesn’t exist. | Refreshing open simulators failed

The binary is there. I'm guessing there is a permissions error on read or +x. I made sure there weren't any accidental denied permission requests and tried a few things in an attempt to see if I could trigger a dialog for the volume.

Switching to Xcode-beta.app installed to my host, everything works fine. I haven't tested yet, but have a hunch if I manually moved RocketSim to the same external drive it will work. Under System Settings -> Privacy & Security -> Files & Folders there is no entry for RocketSim, which I assume would be an issue when trying to locate/execute simctl from that volume.

Took me a while to figure out something was wrong to begin with, only realized when trying to find screenshots, and ignored the fact the floating window was missing because I hadn't yet RTFM. Both were failing and those errors were swallowed, well not swallowed, but log only.

[AvdLee]

Thanks for reporting in! This is indeed an issue and something hard for me to solve. It has been reported to me before via email support and I couldn't find a solution either.

If you believe this could be fixed, do let me know! I'd love to look into it :)