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Re: [tycho-user] Open donwloaded DMG image failed on macOS Catalina 10.15.7

Hi Christopher,

If the .app file is configured correctly (I’d have thought you’d get a different message than “.. is damaged..”) you should still be able to run it by right-clicking on the .app and selecting Open - this overrides Gatekeeper:

That’s maybe an OK approach for a “private” app with controlled distribution to a few users, but not for a public app which you’d indeed want to notarise..

If you end up going down that route, here’s some resources you might find useful:

In the 2nd one ignore all the Xcode stuff - further down it has a very useful & easily re-useable script in section “Automating the Process”. 


On 26 Feb 2021, at 03:03, Sravan K Lakkimsetti <sravankumarl@xxxxxxxxxx> wrote:

You’ll need to notarize mac apps before publishing on web. Please see for more information. We already taken care of prerequisites like signing with secure timestamp etc on the mac specific binaries. As software developer you’ll need to notarize macos app.
From: Christopher Erlanger <erlanger@xxxxxxxxx> 
Sent: 25 February 2021 20:22
To: tycho-user@xxxxxxxxxxx
Subject: [EXTERNAL] [tycho-user] Open donwloaded DMG image failed on macOS Catalina 10.15.7

Hi @All
I try to create an RCP Application with a maven build. 
Creating 3 archive files is working fine but after upload the zipped file for macOS to GitHub and download it. Then after unpacking the posts an error: 
"" is damaged and cannot be opened. It is recommended to move the item to the trash.
I've tested it with a very simple RCP application: 
I get the same behavior here too. After the *.zip file has been uploaded to GitHub and downloaded and unpacking again.
Which settings or configurations are missing so that the uploaded file can be executed also on macOS?
Thanks and best regards
Christopher Erlanger 

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