iOS swift Firestore failed on loading gRPC-C++ Framework - ios

Question

When I run my firestore code , beginning it is ok. When it comes to running with simulators or my new phone, it goes to this exception regardless of my firestore version :
Some said that it is related to the pen issues but this is not gonna work.Am I not encouraged to use anonymous login ?
Here is my code :
Auth.auth().signInAnonymously() { (result , error) in
guard let authResult = result else {
return
}
let user = authResult.user
let isAnonymous = user.isAnonymous // true
if(isAnonymous){
let uid = user.uid
User.shared.userId = uid
print("user id : \(User.shared.userId)")
let userRef = db.collection("user").document(User.shared.userId)
userRef.getDocument { (querySnapshot, err) in
if let err = err {
print("Error getting documents: \(err)")
} else {
if (querySnapshot?.get("progress") == nil) {
var dataDict : Dictionary<String , Any> = [:]
dataDict["progress"] = 0
userRef.setData(dataDict)
}else{
let dict = querySnapshot?.data()
let sssresult = dict!.filter{ $0.key == "progress" }.first?.value as? Int ?? 0
User.shared.progress = sssresult
}
}
}
}
// Do any additional setup after loading the view.
}
// CocoaPods: try to load from the gRPC-C++ Framework.
NSBundle* _Nullable FindGrpcCppFrameworkBundle() {
return [NSBundle bundleWithIdentifier:#"org.cocoapods.grpcpp"];
}