Not able to simulate app on x86_64 mac

When trying to start the app on one of the simulators of XCode (e.g. IPhone8) the app won’t build.

There is a build error in App->App->AppDelegate.swift Line 2 (“import Capacitor”).

The error says “Could not find module ‘Capacitor’ for target ‘x86_64-apple-ios-simulator’; found: arm64, arm64-apple-ios-simulator”.

It works perfect when using an actual device.

It seems like I am missing something obvious. Could anybody point me in the right direction?

Ionic Info:

Ionic:

   Ionic CLI                     : 6.13.1 (/usr/local/lib/node_modules/@ionic/cli)
   Ionic Framework               : @ionic/angular 5.5.1
   @angular-devkit/build-angular : 0.1002.0
   @angular-devkit/schematics    : 10.0.8
   @angular/cli                  : 10.2.0
   @ionic/angular-toolkit        : 2.3.3

Capacitor:

   Capacitor CLI   : 2.4.6
   @capacitor/core : 2.4.6

Cordova:

   Cordova CLI       : not installed
   Cordova Platforms : not available
   Cordova Plugins   : not available

Utility:

   cordova-res : 0.15.3
   native-run  : not installed

System:

   ios-sim : 8.0.2
   NodeJS  : v12.21.0 (/usr/local/bin/node)
   npm     : 6.14.11
   OS      : macOS Big Sur
   Xcode   : Xcode 12.5.1 Build version 12E507

I have run into a similar error trying to use the simulator on an M1 mac. I started from this error:

Then when trying some of those solutions, specifically setting Excluded Architectures to arm64 I got to this error. I have not found a solution so far.