Xpra: Ticket #2454: DMG file can't be used on Catalina

“Xpra” is damaged and can’t be opened. You should eject the disk image.

Every version up to r24184 dmg file shows this during verification.

If you try to open the DMG and then run the app bundle directly from the command line, it fails the same. Same even when you point to any binary inside of Xpra.app/Contents/MacOS. It simply fails.



Fri, 18 Oct 2019 14:21:43 GMT - Antoine Martin: priority, status, component changed

The PKG does work: #2453

This could be related to notarization (#2441) or some other security "feature" in macos.


Fri, 18 Oct 2019 14:33:59 GMT - Antoine Martin: owner, status changed

Could this be caused by Gatekeeper? SOLVED: "Application" is damaged and can't be opened in macOS Sierra

Or some extended attributes? macOS Catalina: “App is damaged and can't be opened. You should move it to the trash.”


Thu, 05 Mar 2020 10:05:28 GMT - Antoine Martin: owner, status, milestone changed

Works for me.

Need more info. See #2388 and #2730.


Sun, 04 Oct 2020 12:54:14 GMT - Antoine Martin: status changed; resolution set

Not heard back. Closing.

My guess is that you need to right click: Can't you just right click?


Sat, 23 Jan 2021 05:51:42 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2454