Unable to import native (Swift) iOS view into React Native project - requireNativeComponent was not found in the UIManager

Preface: this error message with requireNativeComponent appears often on StackOverflow, mostly resolved with the suggestions such as disintegrating the pods, and then performing a new pod install and recompiling.

Unfortunately this has not worked out in my case.

--

I am trying to lift a simple view, written in Swift, into my React Native 0.71.x project.

iOS Swift code TestViewManager.swift

import Foundation
import UIKit

@objc (TestViewManager)
class TestViewManager: RCTViewManager {
  override func view() -> UIView! {

    let label = UILabel()
    label.text = "Hello from parent"
    label.sizeToFit()
    label.textAlignment = .center
    label.textColor = .link
    
    return label
  }
  
  override static func requiresMainQueueSetup() -> Bool {
    return true
  }
  
}

The Objective-C implementation file TestViewManager.m

#import <Foundation/Foundation.h>

#import "React/RCTBridgeModule.h"
#import "React/RCTViewManager.h"

@interface RCT_EXTERN_MODULE(TestViewManager, RCTViewManager);

@end

In React Native, the TestView.js file

import React, {Component} from 'react';
import {requireNativeComponent} from 'react-native';

const RNTestView = requireNativeComponent('TestViewManager');

export default class TestView extends Component {
    render() {
        return <RNTestView />;
    }
}

Everything appears to be extremely vanilla, similar to this person's set up (with same issue, unanswered)

However, the outcome is the message: Invariant Violation: requireNativeComponent: "TestViewManager" was not found in the UIManager.

What am I doing incorrectly?