TypeError：无法读取未定义的属性（读取“arrayRemove”）

Question

我在 firebase 模拟器中有一个云函数，我正在尝试更新一个数组。但是，当函数运行时，出现以下错误：

TypeError: Cannot read properties of undefined (reading 'arrayRemove')

。我不确定出了什么问题。我的节点版本是 16.

这是我的功能代码：

const functions = require("firebase-functions");
const admin = require("firebase-admin");

admin.initializeApp();

const db = admin.firestore();
const storage = admin.storage();

exports.completeEventRegistration = functions.firestore
    .document("<path>")
    .onCreate(async (snap, context) => {

     // <ommitted>

      try {

        await db.runTransaction(async (transaction) => {

          // <omitted>   

          const fieldValue = admin.firestore.FieldValue;

          transaction.update(committeeRef, {"countries": fieldValue.arrayRemove({
            "name": chosenCountry,
            "taken": false,
          })});


        });

      } catch (error) {
        console.log("Error registering: ", error);
        throw new functions.https.HttpsError("internal", "Error registering");
      }

    });

Answer 1

fieldValue

似乎没有定义/声明。您需要声明如下：

const functions = require('firebase-functions');
const admin = require('firebase-admin');

const fieldValue = require('firebase-admin').firestore.FieldValue;