I'm using FF Mac app.
I added Firestore to my project and even published the project and test it in TestFlight and it worked. Then since I didn't want to publish for other minor things I was going to add I sent the project to my phone and Xcode launched. I selected to run the Xcode version and not the one on disk. I got multiple errors.
I closed Xcode and proceeded to publish and then started getting the same errors on my phone with the TestFlight version.
If I run my project to the simulator everything is working no issues at all.
The 1st screen is the simulator, 2nd one is sending it to my iPhone and 3rd one is the message in Xcode.