Electron-builder: Cannot build DMG with Big Sur (Xcode 12): hdiutil: unflatten: verb not recognized

[solshark]

• Version: 22.6.0

• Electron Version: v.8.1.1

• Target: mac

One of the options for hdiutil being deprecated (similar case: https://gitlab.kitware.com/cmake/cmake/-/issues/20889)
So build operation failed with error

 ⨯ Exit code: 1. Command failed: hdiutil unflatten /Users/XXX.dmg
hdiutil: unflatten: verb not recognized
Usage: hdiutil <verb> <options>
<verb> is one of the following:
help
attach
detach
...

I'm on Big Sur beta 8 (Xcode 12) at the moment but seems like a not recognized option not coming back.

[nbashkankov]

Any news here?
Faced same issue on:

Version: 22.4.1
Electron: 7.2.1
Target: Mac

MacOS 11.0 Beta (20A5384c)

[JuanIrache]

What workaround are people using? Reverting to Catalina? Removing the license?

[k2s]

@JuanIrache

1. use my patch
2. or remove license file and then add manually with dmg-license CLI tool

[JuanIrache]

Thanks @k2s Unfortunately I already painfully rolled back to Catalina.

Do you know why your patch does not pass the checks? Thanks