小编Onu*_*der的帖子

我是Typescript的新手.我已经3天了.我想从Firebase访问数据.我访问并列出.当我想用(Click)="item()"传递给另一个页面时,我收到错误.我在哪里做错了.

数据api.service.ts

import {Injectable} from '@angular/core';
import {Http,Response} from '@angular/http';

import 'rxjs';
import {Observable} from 'rxjs/Observable';
@Injectable()

export class DataApi {


 private url = 'https://ionic2-9dc0a.firebaseio.com/.json';   // https://ionic2-9dc0a.firebaseio.com

 currentphone : any = {};
constructor(private http:Http){
}
  getAdress(){
    return new Promise(resolve =>{
      this.http.get(`${this.url}`) 
      .subscribe(res => resolve(res.json()))
    });
  }





  }

about.ts

import { Component } from '@angular/core'; 
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import {DataApi} from '../../app/shared/shared';
import {Http, HttpModule} from '@angular/http';


import  {TeamsPage} from '../teams/teams';

 @IonicPage()
 @Component({
 selector: 'page-about',
 templateUrl: …

我正在尝试构建一个 IONIC 项目，但我面临这个异常，我无法为此调试解决方案。我尝试了很多建议，但没有解决方案。我正在等待您的帮助

    1-ionic start test4 tabs
    2-cd test4
    3-ionic platform add android
    4-ionic build android

错误

       C:\Users\onurr\test4>ionic build android
       Running command: "C:\Program Files\nodejs\node.exe"  
       C:\Users\onurr\test4\hooks\after_prepare\010_add_platform_class.js       
       C:\Users\onurr\test4   

        add to body class: platform-android

        ANDROID_HOME=C:\Users\onurr\AppData\Local\Android\sdk

        JAVA_HOME=C:\Program Files (x86)\Java\jdk1.8.0_112

        Subproject Path: CordovaLib

       Starting a new Gradle Daemon for this build (subsequent builds will be faster).



     FAILURE: Build failed with an exception.

     * What went wrong:
     Unable to start the daemon process.
     This problem might be caused by incorrect configuration of the daemon.
     For example, …

我是Ionic2的新手.我正在开发离子2上的测试应用程序,它有很多功能(短信,电话号码,图表,MySql,推...)我只是按照推送通知的步骤.推送通知链接.但我得到一个错误,我没有得到原因.我在哪里犯错误

app.component.ts

   import { Component } from '@angular/core';
   import { Platform } from 'ionic-angular';
   import { StatusBar } from '@ionic-native/status-bar';
   import { SplashScreen } from '@ionic-native/splash-screen';
   import {
   Push,
   PushToken
     } from '@ionic/cloud-angular';

  import { HomePage } from '../pages/home/home';
  @Component({
  templateUrl: 'app.html',
  providers: [Push]

})
export class MyApp {
   rootPage:any = HomePage;

    constructor(platform: Platform, statusBar: StatusBar, splashScreen: 
      SplashScreen,public push:Push) {
       platform.ready().then(() => {
       // Okay, so the platform is ready and our plugins are available.
      // Here you …