Cannot build an installer for a CocoaApp (Xamarin.Forms) on Visual Studio for Mac

Issue

I have been trying to build a simple installer from a newly created template from Visual Studio for Mac.

New Project > Cocoa App

Nothing fancy really.

I can run the app in debug mode, but as soon as I enable the Create Installer Package option, it won't build.

Options > Build > Mac Build > Packaging : Create installer package (checkbox)

I always get this error:

/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Mac/Xamarin.Mac.Common.targets(3,3): Error MSB6006: "productbuild" exited with code 134. (MSB6006) (InstallerAttempt01)

I am using the latest Visual Studio Mac, and the latest Xamarin.Forms versions.

So, I must be missing something, and I don't really know what right now, as I can't find any info on this topic anywhere.

Solution

Just to confirm that this is a bug, me and one more developer have confirmed it.

You can upvote or comment here so that it may be fixed quicker: https://github.com/xamarin/xamarin-macios/issues/13197

Update: Apple is expected to fix this problem in the new version of macOS/XCode

Answered By - Ivan Ičin