“Fabric.framework” can’t be opened because it is from an unidentified developer Xcode

I just updated to Mac OS Catalina. One of my projects run on Xcode 10.1 and has third party frameworks(Firebase, Fabric) embedded manually. Now after the update, when. I build the project, I get this error.

“Fabric.framework” can’t be opened because it is from an unidentified developer

This leads to build phase failure eventually.

I have already tried the 'Open Anyway' option from Security Preferences but probably because it is a framework, it does not help.

I just encountered the same error and resolved using below solution.

1. Open "Terminal"
2. Type this command: "sudo spctl --master-disable"
3. It will ask for administrator rights, so enter your system password and you're good to go.
4. You will find that under, "System Preferences > Security & Privacy > Anywhere (this option will appear automatically)". Which you can change as per your preferences.

Let me know if this helps or not!