Firebase Undefined symbols for architecture x86_64

Question

I am using firebase as part of a project I am working on in iOS, and I just stumbled upon the following linking error when I try to compile my code against an iPhone 6 or 7

Answer 1

For me I just installed Firebase framework to Xcode, not using CocoaPods due to other unsolvable issues. After build there is similar errors like above with "symbol(s) not found for architecture x86_64". (maybe because I am working with Xcode on VMWare)

Then I have to manually go to General - Linked Frameworks and Libraries and add:

libsqlite3.tbd, libz.tbd, libc++.tbd

for the project to work.