firebase-ios-sdk: FirebaseAnalytics symbols not found when installed via SPM

[REQUIRED] Step 1: Describe your environment

• Xcode version: 12.0 beta 6 (12A8189n)
• Firebase SDK version: 6.32-spm-beta
• Firebase Component: Analytics
• Component version: 6.32.0
• Installation method: Swift Package Manager

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

• I’ve installed Firebase via SPM using the instructions found at this page.
• I’ve also added the -ObjC flag as mentioned because I am using FirebaseAnalytics.

When compiling my project I get a bunch of errors like the ones bellow:

Undefined symbols for architecture arm64:
  "_kFIRParameterShipping", referenced from:
      {edited}
  "_kFIREventAddPaymentInfo", referenced from:
      {edited}
  "_kFIRParameterCheckoutOption", referenced from:
      {edited}
  "_kFIREventCheckoutProgress", referenced from:
      {edited}
  ...
ld: symbol(s) not found for architecture arm64

I get the same errors when trying to run on the simulator but the architecture is x86_64 instead (obviously).