XCode 14 compile errors immediately disappear or do not appear at all

I'm facing the same issue even on Xcode 15 beta. It is not yet solved.

What an incredible bug! On Xcode 14.3.1 and, yes, encountering this error where I build, get to see my compile errors for a second or two, then have them helpfully disappear.

Clearing Derived Data did not fix the issue for me.

This is a very weird Xcode behaviour. After investing several hours of finding what might be causing the Problem, I've noticed that having a custom Configuration name other than "Debug" led to this bug. Make sure that you have a "Debug" configuration and let me know if this would fix it.

In my case I found an easy solution:

Xcode > Settings... > General:

Deactivate: Show live issues

All error appeared which before were gone.

Xcode 14.3.1: Xcode > Settings > General

Uncheck "Show live issues", problem will be solved.

Live issues is off for me, and it's doing the "errors in the log, not the navigator" thing

Disabling Live issues in Settings > General solved the problem for me too

Xcode 15 Disabling Live Issues And Debug config worked for me

hardcode solution if your Xcode still works anomaly,

so, it was only partial solution to show inline errors, but if you want your normal Xcode back: move to bin your xcode, For a complete removal of Xcode delete the following:

1. /Applications/Xcode.app
2. ~/Library/Caches/com.apple.dt.Xcode
3. ~/Library/Developer
4. ~/Library/MobileDevice
5. ~/Library/Preferences/com.apple.dt.Xcode.plist
6. /Library/Preferences/com.apple.dt.Xcode.plist
7. /System/Library/Receipts/com.apple.pkg.XcodeExtensionSupport.bom
8. /System/Library/Receipts/com.apple.pkg.XcodeExtensionSupport.plist
9. /System/Library/Receipts/com.apple.pkg.XcodeSystemResources.bom
10. /System/Library/Receipts/com.apple.pkg.XcodeSystemResources.plist
11. /private/var/db/receipts/com.apple.pkg.Xcode.bom

But instead of 11, open up /private/var/in the Finder and search for "Xcode" to see all the 'dna' left behind... and selectively clean that out too. I would post the pathnames but they will include randomized folder names which will not be the same from my Mac to yours.

And, just to double check:

• xcrun simctl delete unavailable
• xcrun simctl shutdown all && xcrun simctl erase all
• sudo /Developer/Library/uninstall-devtools --mode=all
• rm -rf ~/Library/*/CoreSimulator
• sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService
• sudo rm -rf ~/Library/Caches/com.apple.dt.Xcode

install XCode again, if there is lefted simulators, on manage run destinations : remove all simulators, and install again, looks long but no issues after it 😌

issues usually appears after updating Xcode from 13 to 15/14, espessialy if you used filter on issue navigator, looks like incompatibility of versions or so

It happens to me only in the testing target and everything works fine in the main project

All the above didn't work for me. I've an ObjectiveC Project with Cocoapods. I figured out, that the Run Script Phase with the avgtool is causing my problems.

xcrun agvtool next-version -all

is changing my ***/project.pbxproj file and XCode "thinks" to reset/reload all warnings.

I moved the the Run Script Phase before the compile step, but this didn't help; almost every build was canceled.

Any ideas?

XCode 15.2 - if I disable live issues toggle - I get errors on build only, otherwise no errors at all just build fails. Not great. Happened on Xcode 15.1 to 15.2 upgrade for me.

I have the same problem and it's very annoying. I don't know what to do about it. Can anyone recommend something that works?

Still the same issue on after an upgrade to Xcode 15.3 today too.

Strangely though, it just happens to one of my project files. (AppDelegate.swift, so kind of an important one)

I had the same issue as well and was finally able to find the cause of this problem (for me at least). So maybe this helps for everyone else as well, my configurations were named Development & Production by renaming it back to the Debug & Release again there errors remain visible for me even with the live issues checkbox on.

It could be that you only need to rename the Debug configuration but I haven't tested that.

Hi, I've also facing this issue recently in a React Native project (with some errors on the Swift layer). Using Xcode 15.2 in a M1 mac, this answer from StackOverflow has fixed it for me: https://stackoverflow.com/a/76045861/1272263 - basically, you just have to enable/disable the "Show Live Issues" check in Settings -> General