launchctl erros while installation

[b-reich]

while Installation of netbird, it throws the follwing errors.

❯ brew install netbirdio/tap/netbird-ui
==> Would install 1 cask:
netbirdio/tap/netbird-ui
==> Fetching downloads for: netbirdio/tap/netbird-ui
✔︎ Cask netbird-ui (0.77.0)                                                                                                Downloaded    9.8MB/  9.8MB
All dependencies satisfied.
==> Installing Cask netbird-ui
==> Moving App 'netbird_ui_darwin' to '/Applications/Netbird UI.app'
Password:
Error: stop service: "launchctl" failed with stderr: Unload failed: 5: Input/output error
Try running `launchctl bootout` as root for richer errors.

Error: uninstall service: remove /Library/LaunchDaemons/netbird.plist: no such file or directory
🍺  netbird-ui was successfully installed!

[b-reich]

may this relates to #7 ?

[aliberts]

Having the same error on every netbird-ui upgrade since 0.76.1, the daemon remains stopped afterward.

I've dug a bit with an agent, this is what it has to say:

The launchd logs show a race:

• cask uninstall_preflight initiates bootout of system/netbird; launchd schedules cleanup
• postflight attempts to start the newly installed service, but bootstrap fails with error 37: Operation already in progress
• the old service finally finishes removal
• Retrying the service installation afterward succeeds

The CLI reports this as Load failed: 5: Input/output error because NetBird’s service library still uses legacy launchctl load/unload.

This appears related to #6: Homebrew runs the cask’s uninstall artifacts during upgrades, so its new uninstall_preflight tears down the daemon immediately before the bundled installer tries to recreate it.

The postflight script also suppresses these failures with || true, allowing Homebrew to report a successful upgrade while /var/run/netbird.sock is absent.

Possible fixes would be to avoid tearing down the daemon during upgrades, or wait until system/netbird has fully disappeared before installing/starting it again.

Hopping that helps