无法解析 TranslateService 的所有参数：(?, ?, ?, ?, ?, [object Object]

Question

自昨天以来，我无法再在浏览器中测试我的 ionic 3 应用程序，因为我收到以下与 TranslateService 相关的错误。这似乎与我的代码无关，因为当我切换到以前的版本时我也遇到了同样的问题，尽管当时它运行良好。我尝试重新安装节点模块，但仍然没有成功。你知道我应该怎么做才能解决这个问题吗？谢谢！

ERROR Error: Uncaught (in promise): Error: Can't resolve all parameters for TranslateService: (?, ?, ?, ?, ?, [object Object], [object Object]). Error: Can't resolve all parameters for TranslateService: (?, ?, ?, ?, ?, [object Object], [object Object]). at syntaxError (compiler.js:466) at CompileMetadataResolver._getDependenciesMetadata (compiler.js:15544) at CompileMetadataResolver._getTypeMetadata (compiler.js:15379) at CompileMetadataResolver._getInjectableMetadata (compiler.js:15359) at CompileMetadataResolver.getProviderMetadata (compiler.js:15719) at compiler.js:15630 at Array.forEach () at CompileMetadataResolver._getProvidersMetadata (compiler.js:15590) at compiler.js:15080 at Array.forEach () at syntaxError (compiler.js:466) at CompileMetadataResolver._getDependenciesMetadata (compiler.js:15544) at CompileMetadataResolver._getTypeMetadata (compiler.js:15379) at CompileMetadataResolver._getInjectableMetadata (compiler.js:15359) at CompileMetadataResolver.getProviderMetadata (compiler.js:15719) at compiler.js:15630 at Array.forEach () at CompileMetadataResolver._getProvidersMetadata (compiler.js:15590) at compiler.js:15080 at Array.forEach () at c (polyfills.js:3) at c (polyfills.js:3) at polyfills.js:3 at t.invokeTask (polyfills.js:3) at Object.onInvokeTask (core.js:4617) at t.invokeTask (polyfills.js:3) at r.runTask (polyfills.js:3) at o (polyfills.js:3)

从我的 package.json 我可以看到：@ngx-translate/core": "^9.1.1" 和 @ngx-translate/http-loader": " ^2.0.1

我的离子信息

@ionic/cli-utils  : 1.19.2
ionic (Ionic CLI) : 3.20.0

global packages:

cordova (Cordova CLI) : 8.0.0

local packages:

@ionic/app-scripts : 3.1.0
Cordova Platforms  : android 7.1.0 browser 5.0.3 ios 4.4.0
Ionic Framework    : ionic-angular 3.9.2

System:

Android SDK Tools : 25.2.5
ios-deploy        : 1.9.2 
Node              : v6.10.0
npm               : 3.10.10 
OS                : macOS High Sierra
Xcode             : Xcode 9.3.1 Build version 9E501

Environment Variables:

ANDROID_HOME : /usr/local/Cellar/android-sdk/24.1.2/

Misc:

backend : pro

Answer 1

我也有相同的版本@ngx-translate/core": "^9.1.1" 和@ngx-translate/http-loader": "^2.0.1"
您可以使用我的 package.json 检查 angular 依赖项和 ionic-app 脚本版本。它适用于那些版本。

    "dependencies": {
    "@angular/animations": "5.2.9",
    "@angular/common": "5.2.9",
    "@angular/compiler": "5.2.9",
    "@angular/compiler-cli": "5.2.9",
    "@angular/core": "^5.2.9",
    "@angular/forms": "5.2.9",
    "@angular/http": "5.2.0",
    "@angular/platform-browser": "^5.2.9",
    "@angular/platform-browser-dynamic": "5.2.9",
    "@ionic-native/app-version": "^4.7.0",
    "@ionic-native/ble": "^4.7.0",
    "@ionic-native/core": "4.6.0",
    "@ionic-native/globalization": "^4.7.0",
    "@ionic-native/keyboard": "^4.7.0",
    "@ionic-native/network": "^4.7.0",
    "@ionic-native/screen-orientation": "^4.7.0",
    "@ionic-native/splash-screen": "4.6.0",
    "@ionic-native/status-bar": "4.6.0",
    "@ionic/storage": "2.1.3",
    "@ngx-translate/core": "^9.1.1",
    "@ngx-translate/http-loader": "^2.0.1",
    "cordova-android": "6.3.0",
    "cordova-ios": "4.5.4",
    "cordova-plugin-app-version": "^0.1.9",
    "cordova-plugin-compat": "^1.2.0",
    "cordova-plugin-device": "^2.0.1",
    "cordova-plugin-globalization": "^1.0.9",
    "cordova-plugin-ionic-keyboard": "^2.0.5",
    "cordova-plugin-ionic-webview": "^1.1.19",
    "cordova-plugin-screen-orientation": "^3.0.1",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.1",
    "cordova-plugin-whitelist": "^1.3.3",
    "es6-promise-plugin": "^4.2.2",
    "ionic-angular": "3.9.2",
    "ionicons": "3.0.0",
    "moment": "^2.22.1",
    "moment-timezone": "^0.5.16",
    "rxjs": "5.5.8",
    "sw-toolbox": "3.6.0",
    "zone.js": "0.8.20"
  },
  "devDependencies": {
    "@ionic/app-scripts": "3.1.8",
    "typescript": "~2.6.2",
  }

应用程序模块：app.module.ts

import {ErrorHandler, NgModule} from '@angular/core';
import {IonicApp, IonicErrorHandler, IonicModule} from 'ionic-angular';

// import ngx-translate and the http loader
import {TranslateLoader, TranslateModule} from '@ngx-translate/core';
import {TranslateHttpLoader} from '@ngx-translate/http-loader';
import {HttpClient, HttpClientModule} from '@angular/common/http';
import {Globalization} from '@ionic-native/globalization';
/****************************Pages*******************************/
import {myApp} from './app.component';
import {SignUp} from '../pages/sign_up/sign-up.component';

import {GlobalizationService} from '../providers/common_service/globalisation.service';


// required for AOT compilation
export function HttpLoaderFactory(http: HttpClient) {
    return new TranslateHttpLoader(http, './assets/i18n/', '.json');
}

@NgModule({
    declarations: [
        myApp,
    ],
    imports: [
        IonicModule.forRoot(myApp, {
            mode: 'ios'
        }),
        TranslateModule.forRoot({
            loader: {
                provide: TranslateLoader,
                useFactory: HttpLoaderFactory,
                deps: [HttpClient]
            }
        })
    ],
    bootstrap: [IonicApp],
    entryComponents: [
        myApp,
        SignUp,
    ],
    providers: [
        Globalization,
        GlobalizationService,
        //TODO TEST
        {provide: ErrorHandler, useClass: IonicErrorHandler}
    ]
})
export class AppModule {
}

应用程序组件文件：app.component.ts

import {Component, ViewChild} from '@angular/core';
import {Platform} from 'ionic-angular';

import {GlobalizationService} from '../providers/common_service/globalisation.service';
import {SignUp} from '../pages/sign_up/sign-up.component';

@Component({
    templateUrl: 'app.html'
})

export class myApp {
    @ViewChild(Nav) nav: Nav;

    rootPage: any = SignUp;

    pages: Array<{ title: string, component: any }>;

    constructor(private globalizationService: GlobalizationService) {

    }

    protected initializeApp() {
        this.globalizationService.initializeLocalization();
        this.platform.ready().then(() => {
            //Function initializeLocalization can also call here 
        });
    }
}

全球化服务：globalisation.service

import { Injectable } from '@angular/core';
import { Globalization } from '@ionic-native/globalization';
import { TranslateService } from '@ngx-translate/core';

@Injectable()
export class GlobalizationService {
    public userLang:any;
    constructor(private globalization: Globalization,public translateService: TranslateService){}

    /*
     *  Function to initialize localization for application
    */
    public initializeLocalization(){
        console.log('in init location');
        this.globalization.getPreferredLanguage()
        .then(res => {
            console.log(res);
            if(res.value=="fr-FR"){
             this.userLang="fr";
             this.useLanguage(this.userLang);
            }
            else{
                this.translateService.setDefaultLang('en');
            }
        })
        .catch(e => {
            console.log(e)
            this.translateService.setDefaultLang('en');
        });
      }

    /**
     * Function to set language for application
     * @param language: Language to use
     */
    public useLanguage(language: string) {
        this.translateService.use(language);
    }
}

Answer 2

今天我们的一个工作站遇到了同样的问题，它与其他工作站共享同一个 node_module 文件夹！该错误似乎与最新的 Chrome 更新版本或生成的 ts Source Maps 或两者有关，因为当我们运行我们的应用程序在其他浏览器的开发模式下工作正常...... 快速修复是进行生产构建并将其加载到 Chrome ，然后在开发模式下重试。至少这对我们有用，也许对其他人也有用。

无法解析 TranslateService 的所有参数：(?, ?, ?, ?, ?, [object Object]

Can't resolve all parameters for TranslateService: (?, ?, ?, ?, ?, [object Object]

ngx-translate

ionic3