Fail to import coreml model

[movila]

I created the project using Swift and Native module. After initialization, I added my PTDetector.mlmodel to the project/example/ios/ folder and also imported it into Xcode to auto-generate the Swift model class. Then, inside the project/ios/ folder, I added two lines of code to the default Swift file:

import CoreML  // edit #1

@objc(AwesomeModule)
class AwesomeModule: NSObject {

  @objc(multiply:withB:withResolver:withRejecter:)
  func multiply(a: Float, b: Float, resolve:RCTPromiseResolveBlock,reject:RCTPromiseRejectBlock) -> Void {
    let model = PTDetector()  // edit #2
    resolve(a*b)
  }
}

After making these changes, I attempted to run yarn example ios but the build stage failed.