We are building an installer using Installbuilder 21.12.0 on Mac OS X 10.14.6 Mojave. We have already successfully code signed, notarised and stapled the application that is being embedded in the installer.
When Installbuilder tries to code sign the installer, we get the following error:
Error: Error signing /Build files/Temp/2bae5425/10.1/Our.app: Invalid signature: /Build files/Temp/2bae5425/10.1/Our.app: nested code is modified or invalid
This error starting happening after accepting the the new terms and conditions imposed by Apple around November 2021, prior to that we had no problems code-signing our installers. The net result is the installer is being quarantined by the Mac OS when it is downloaded from our website.
Can anyone help please?