打字稿错误';'预期的。 'EventNameString' 仅指一种类型，但在此处用作值

Question

我正在尝试将 firebase 电话身份验证添加到一个旧的 ionic 项目中，并遵循了几个教程。我设法实现它，但每次我做ionic serve -l时都会出现这个错误：

但是我注意到，如果我在ionic serve -l 之后评论了app.modules.ts 中的其中一行，错误就会消失：

import { AngularFireModule } from "@angular/fire";
import { AngularFireAuth } from "@angular/fire/auth";

由于错误在 node-modules 文件夹中，我尝试多次删除它，甚至在其他 PC 上尝试过，在这里和那里遵循了一些答案，但我无法解决它。

错误文本：

Typescript Error
';' expected.
gtagName?: string;
/** Sets custom name for `dataLayer` array used by gtag. */
dataLayerName?: string;

Typescript Error
'EventNameString' only refers to a type, but is being used as a value here.
/** Sets custom name for `dataLayer` array used by gtag. */
dataLayerName?: string;

Typescript Error
'never' only refers to a type, but is being used as a value here.
/** Sets custom name for `dataLayer` array used by gtag. */
dataLayerName?: string;

Typescript Error
Cannot find name 'T'.
/** Sets custom name for `dataLayer` array used by gtag. */
dataLayerName?: string;

离子信息：

Ionic Framework: ^3.9.8
Ionic App Scripts: 3.2.4
Angular Core: ^5.2.7
Angular Compiler CLI: ^5.2.7
Node: 12.13.1
OS Platform: Windows 10
Navigator Platform: Win32
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36

app.modules.ts 导入依赖：

import { ErrorHandler, Injectable, Injector, NgModule } from "@angular/core";
import { IonicApp, IonicErrorHandler, IonicModule } from "ionic-angular";
import { BrowserModule } from "@angular/platform-browser";
import { HttpModule } from "@angular/http";
import { HttpClient, HttpClientModule } from "@angular/common/http";

import { Geolocation } from "@ionic-native/geolocation";
import { NativeGeocoder } from "@ionic-native/native-geocoder";

import { MyApp } from "./app.component";
import { TabsPage } from "../pages/tabs/tabs";
import { Loading } from "../pages/loading/loading";
import { Welcome } from "../pages/welcome/welcome";
import { GeoPage } from "../pages/geo/geo";

import { IonicStorageModule } from "@ionic/storage";
import { StatusBar } from "@ionic-native/status-bar";
import { SplashScreen } from "@ionic-native/splash-screen";

import { APIService } from "../services/api_service";
import { CartService } from "../services/cart_service";
import { PushService } from "../services/push_service";
import { UtilService } from "../services/util_service";
import { OrderHistoryService } from "../services/order_history_service";

import { TranslateLoader, TranslateModule } from "@ngx-translate/core";
import { TranslateHttpLoader } from "@ngx-translate/http-loader";
import { RestaurantsPageModule } from "../pages/catalog/restaurants/restaurants.module";
import { GeoPageModule } from "../pages/geo/geo.module";
import { AngularFireModule } from "@angular/fire";
import { AngularFireAuth } from "@angular/fire/auth";
import { firebaseConfig } from "../config";
import { LoginPage } from "../pages/personal/login/login";
import { AuthService } from "../services/auth.service";
import { NgxErrorsModule } from '@ultimate/ngxerrors';

Answer 1

主要的是，当您尝试将类型设置为EventNameString 时，您必须使用= 而不是: 和EventNameString。这就是为什么您收到错误“EventNameString”仅指一种类型，但在此处用作值的原因。

如我所见，这些主要是语法错误。正如@nircraft 建议的那样，您应该尝试清理node_modules，它是cache，然后重新安装。