类型错误未定义不是对象（正在评估'Wu.getRandomValues'）

Question

这是我为向集合中添加数据而实现的代码：

import FirebaseKeys from "./config";
import firebase from "firebase";
import "@firebase/firestore";

class Fire {
  constructor() {
    firebase.initializeApp(FirebaseKeys);
  }
  addPost = async ({ text, localUri }) => {
    const remoteUri = await this.uploadPhotoAsync(localUri);
    const desc = text;

    return new Promise((res, rej) => {
      // console.log("THIS FIRESTORE" + this.firestore);
      const dbh = firebase.firestore();

      // this.firestore.collection("posts").add({
      //     text: desc,
      //     uid: this.uid,
      //     timestamp: this.timestamp,
      //     image: remoteUri
      //   })

      dbh
        .collection("posts")
        .doc("feed")
        .set({
          text: desc,
          uid: this.uid,
          timestamp: this.timestamp,
          image: remoteUri
        })
        .then(ref => {
          res(ref);
          console.log("EVERYTHING IS FINE HERE");
        })
        .catch(error => {
          console.log("ERROR HERE TOO");

          rej(error);
        });
    });
  };

  uploadPhotoAsync = async uri => {
    console.log(this);

    const path = "Date.jpg";
    return new Promise(async (res, rej) => {
      const response = await fetch(uri);
      const file = await response.blob();

      let upload = firebase
        .storage()
        .ref(path)
        .put(file);
      upload.on(
        "state_changed",
        snapshot => {},
        err => {
          console.log("ERROR IN PHOTO UPLOAD");

          rej(err);
        },
        async () => {
          const url = await upload.snapshot.ref.getDownloadURL();
          res(url);
          console.log("IMAGE IS UPLOADING FINE");
        }
      );
    });
  };
  get firestore() {
    return firebase.firestore();
  }

  get uid() {
    return (firebase.auth().currentUser || {}).uid;
  }

  get timestamp() {
    return Date.now();
  }
}

Fire.shared = new Fire();
export default Fire;

我正在使用expo react native并使用Firebase进行数据操作来构建应用程序。但是在使用向集合添加数据的功能时，它显示错误，例如

未定义不是对象（正在评估'Wu.getRandomValues'）

[帮我一个忙]

SCREENSHOT OF THE ERROR