MailCore.framework can't be opened because Apple cannot check it for malicious software

[rgbworld]

When I run my project, I receive an error/alert that says: MailCore.framework can't be opened because Apple cannot check it for malicious software.

I am running the app via Xcode's standard "Run" option - which uses a 'debug' build configuration. There are 2 buttons on the alert: Show in Finder and OK. If I press OK, the app still launches and works as expected.

How do I prevent the warning?

It appears to me that it is a code-signing/security issue wrt the nested framework. I am hoping that when I 'archive' and notarize with Apple that the warning will go away.

Thanks for any suggestions. I'll report whatever I find as I try to resolve.

[vincedev]

I got MailCore.framework to build both for x86_64 and arm64 by:

• manually clone repositories for libetpan and libctemplate, then checkout revisions found in build scripts, and build boths for both archs
• then clone MailCore, make framework target look for libraries where said dependencies are built
• then build MailCore for both archs

Hope that helps