@ersaurabh101 wrote:

I am using lazy loading in Ionic 3. I have created a build using npm run build --aot --minifyjs --minifycss --output-hashing=all and uploaded it to server.

Error- Loading chunk failed.

We are facing Loading chunk failed in our web build, in only one of the users system.

1. We tried creating a new build thinking it will resolve the issue.
2. We also cleared cache of browser , we even uninstalled and reinstalled chrome but problem in the system is still there.
3. Other projects of ours are working fine on this same system which are not built using lazy loading.

This is the code which is used to open a page,but on clicking instead of opening, it gives error

this.navCtrl.push('LinksetupPage');

Expected behaviour is, it should open the page.
Error coming - Loading chunk Failed

Please help, thanks in advance for your time.

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@dulciepercy wrote:

I don’t understand how to apply custom themes. For example to make all popovers a certain width.

I’ve read the theming section of the docs a stack of times but I don’t get it. I can change and define my own colours successfully (but don’t ask me how to use, for example, --ion-color-favorite-shade - the docs done help me with that )

What I need to do now is play with width and height of popovers e.g. set the --min-width of popovers to 50%. I would like to do this for all popovers (and maybe eventually work out how to do it for just one popover).

My guess is I need to add under root: in variables.css something like…

.ion-popover-class {
–min-width:90%;
–min-height:90%;
}

Can anyone help me with this? Thanks

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@mczadkiel wrote:

My case is the following: ON IONIC 4

My application sends data to an MSQL table, what I want is that it also sends the image to a server and inserts the name of the image to the same table. With the other data there is a type “file” can be used in the ng model?

I can not do it in a single insert (Data-name of image - upload image to the server).

My form is the following:

<form (ngSubmit)="logForm()">
        <ion-item>  
          <ion-label position="floating" color="danger" >Name:</ion-label>
          <ion-input color="primary"  type="text" [(ngModel)]="datos.nombre"></ion-input>

        </ion-item>

        <ion-item>  
          <ion-label position="floating"  color="danger">CELPHONE:</ion-label>
          <ion-input color="primary"  type="text" [(ngModel)]="datos.telefono"></ion-input>
        </ion-item>


        <ion-button expand="block" type="submit" color="danger" >SEND</ion-button>
      </form>

My ts is:

public datos: any = {};


  apiUrl='http://072atizapan.mx/index.php/'
  logForm() {

    var headers = new Headers();
    headers.append("Accept", 'application/json');
    headers.append('Content-Type', 'application/json' )
    let newData={
      funcion: 'police',
      datos: this.datos
    }
    this.http.post(this.apiUrl, JSON.stringify(newData))
    .subscribe(data=>{
      console.log(data);
      if(data==='true'){
        console.log('return');
        this.presentAlert();
        this.router.navigateByUrl('');

      }else{
        this.presentAlert();
        this.router.navigateByUrl('');

      }
    },
    (err)=>{
      this.presentAlert2();
      console.log(err);
   }
    );
  }

My php is the following:

if($_SERVER['REQUEST_METHOD'] !== 'POST'){
    echo json_encode(array('status' => false));
    exit;
       }

$postdata = file_get_contents("php://input");

$datos=json_decode($postdata, true);

switch ($datos['funcion']) {
    case 'police':
        police($datos);
        break;
    default:
        break;
}

function police($datos){

    $query="INSERT INTO `policias`(`nombre`, `telefono`,) VALUES ('{$datos['datos']['nombre']}','{$datos['datos']['telefono']}')";
    execQuery3($query);


}

The previous thing already makes insert to the table but as it would be done so that the name of the image is inserted and at the same time the image is uploaded to a folder using NG MODEL FILE but everything is done in a single insert.

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@kirushax3 wrote:

i wanna send variables to scss.
how can i do that?

for example at first i get colors from database than i wanna push it to scss …

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@NurGuz wrote:

Hi guys,

I have this problem with my IONIC 4 app.

Have a component that if I import into module of a page, works:

import { NgModule } from '@angular/core';
import { MenuHeaderModule } from '../menu-header/menu-header.module';
import { SharedModule } from '../shared/shared.module';
import { HomePage } from './home-page/home.page';
import { HomePageRoutingModule } from './home-routing.module';


@NgModule({
  imports: [
    SharedModule,
    HomePageRoutingModule,
    **MenuHeaderModule**
  ],
  declarations: [
    HomePage
  ]
})
export class HomePageModule { }

But, if import this Module into Core, have this error: ‘strs-menu-header’ is not a known element

import { NgModule } from '@angular/core';
import { SharedModule } from '../shared/shared.module';
import { MenuHeaderModule } from '../menu-header/menu-header.module';


@NgModule({
  declarations: [ MenuHeaderModule ],
  imports: [
    SharedModule
  ],
  exports: [MenuHeaderModule]
})
export class CoreModule { }

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RouteReuseStrategy } from '@angular/router';

import {
  IonicModule,
  IonicRouteStrategy
} from '@ionic/angular';
import { SplashScreen } from '@ionic-native/splash-screen/ngx';
import { StatusBar } from '@ionic-native/status-bar/ngx';

import { StrsComponent } from './strs.component';
import { StrsRoutingModule } from './strs-routing.module';
import { CoreModule } from './core/core.module';

@NgModule({
  declarations: [StrsComponent],
  entryComponents: [],
  imports: [
    BrowserModule,
    IonicModule.forRoot(),
    StrsRoutingModule,
    CoreModule
  ],
  providers: [
    StatusBar,
    SplashScreen,
    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
  ],
  bootstrap: [StrsComponent]
})
export class StrsModule { }

Any idea?

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@melwinVincent wrote:

I just created a custom star rating component for ionic-4 projects

You can give your custom icons, custom color, custom font-size and also make it read only. Can use it multiple times in a single page/multiple pages and get the changed rating in the parent component Can also be used inside the <form> component

Easy to integrate with your ionic-4 projects.

    <ionic3-star-rating #rating
        activeIcon = "ios-star"
        defaultIcon = "ios-star-outline"
        activeColor = "#488aff" 
        defaultColor = "#f4f4f4"
        readonly="false"
        rating="3"
        fontSize = "32px"
        (ratingChanged)="logRatingChange($event)">
    </ionic3-star-rating>

for detailed documentation :

npm link

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@sagrus wrote:

Good day! I make a multi-selection of images from the gallery in the application. I use @ionic-native/image-picker@4. When you select one image everything works fine but if you select two or more images the app crush. Help please.

This is my code:

  fromGallery() {

    let options: ImagePickerOptions = {  
      quality: 100,  
      width: 600,  
      height: 600,  
      outputType: 1,
      maximumImagesCount: 15
  };  
  this.imagePicker.getPictures(options).then((results) => { 
    console.log('Results', results);   
      for (let index = 0; index < results.length; index++) {  
          this.imgs.push('data:image/jpeg;base64,' + results[index]);  
      }  
      console.log('Image Lists', this.imgs);  
  }, (error) => {  
      console.log('Error occurred while loading', error);  
  });

  }

package.json:

{
  "name": "zaholod",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "http://ionicframework.com/",
  "private": true,
  "scripts": {
    "start": "ionic-app-scripts serve",
    "clean": "ionic-app-scripts clean",
    "build": "ionic-app-scripts build",
    "lint": "ionic-app-scripts lint"
  },
  "dependencies": {
    "@angular/animations": "5.2.11",
    "@angular/common": "5.2.11",
    "@angular/compiler": "5.2.11",
    "@angular/compiler-cli": "5.2.11",
    "@angular/core": "5.2.11",
    "@angular/forms": "5.2.11",
    "@angular/http": "5.2.11",
    "@angular/platform-browser": "5.2.11",
    "@angular/platform-browser-dynamic": "5.2.11",
    "@ionic-native/camera": "^4.19.0",
    "@ionic-native/core": "~4.18.0",
    "@ionic-native/fcm": "^4.19.0",
    "@ionic-native/geolocation": "^4.19.0",
    "@ionic-native/http": "^4.19.0",
    "@ionic-native/image-picker": "^4.19.0",
    "@ionic-native/splash-screen": "~4.18.0",
    "@ionic-native/status-bar": "~4.18.0",
    "@ionic/storage": "2.2.0",
    "cordova-android": "7.0.0",
    "cordova-browser": "5.0.4",
    "cordova-plugin-advanced-http": "^2.0.2",
    "cordova-plugin-camera": "^4.0.3",
    "cordova-plugin-device": "^2.0.2",
    "cordova-plugin-fcm-with-dependecy-updated": "^2.4.0",
    "cordova-plugin-file": "^6.0.1",
    "cordova-plugin-geolocation": "^4.0.1",
    "cordova-plugin-ionic-keyboard": "^2.1.3",
    "cordova-plugin-ionic-webview": "^2.3.1",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.2",
    "cordova-plugin-telerik-imagepicker": "^2.2.2",
    "cordova-plugin-whitelist": "^1.3.3",
    "ionic-angular": "3.9.2",
    "ionicons": "3.0.0",
    "rxjs": "5.5.11",
    "sw-toolbox": "3.6.0",
    "zone.js": "0.8.26"
  },
  "devDependencies": {
    "@ionic/app-scripts": "3.2.1",
    "typescript": "~2.6.2"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-advanced-http": {},
      "cordova-plugin-whitelist": {},
      "cordova-plugin-statusbar": {},
      "cordova-plugin-device": {},
      "cordova-plugin-splashscreen": {},
      "cordova-plugin-ionic-webview": {},
      "cordova-plugin-ionic-keyboard": {},
      "cordova-plugin-camera": {},
      "cordova-plugin-telerik-imagepicker": {
        "PHOTO_LIBRARY_USAGE_DESCRIPTION": "your usage message"
      },
      "cordova-plugin-fcm-with-dependecy-updated": {},
      "cordova-plugin-geolocation": {
        "GEOLOCATION_USAGE_DESCRIPTION": "To locate you"
      }
    },
    "platforms": [
      "browser",
      "android"
    ]
  }
}

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@ankant wrote:

I have been trying to send formdata through my ionic application. Native http is establishing the connection with server but I am unable to send formdata. I have tried angular HttpClient and xmlHttpRequest but they are unable to establish connection to the server.

I have tried setting proxy in ionic.config.json, but that didnt work either.
I have set <allow-navigation href="*" /> in config.xml and <meta http-equiv="Content-Security-Policy" content="script-src * 'unsafe-inline' 'unsafe-eval'"> in index.html
I have removed and added the cordova whitelist plugin
But nothing seems to work.
I now get and internal server error with response status : 500

my ionic.config.json:

{
  "name": "app",
  "integrations": {
    "cordova": {}
  },
  "type": "ionic-angular",
  "proxies": [{
        "path": "/api",
        "proxyUrl": "https://myurl.com/"
    }]
}

ionic native http:

this.http.post('/api',formData , {headers:headers})
.then(res=>alert("http res: "+JSON.stringify(res)))
.catch(err=>alert("http err: "+JSON.stringify(err)))

I am not sending any data through angular httpClient or xhr request since I am trying to work with them to establish connection first.

angular httpClient:

this.httpClient.post('/api',{} , {}).subscribe(
          res=>{
              console.log("response : "+JSON.stringify(res));
          },
          err=>{
              console.log("send error : "+JSON.stringify(err))
          });

xhr request:

var xhr = new XMLHttpRequest();
xhr.open('POST', https://myurl.com/);
xhr.onload = function() {
                  if (xhr.status != 200) { 
                    alert(`Error ${xhr.status}: ${xhr.statusText}`); 
                  } else { // show the result
                    alert(`Done, got ${xhr.response.length} bytes`);
                  }
                };
                
xhr.onerror = function(e) {
     alert(JSON.stringify(e));
 };
 xhr.send();

my formdata entry structure is (key,blobFile,filename)
current error:

{"headers":{"normalizedNames":{},"lazyUpdate":null},"status":500,"statusText":"Internal Server Error","url":"http://localhost:8100/api","ok":false,"name":"HttpErrorResponse","message":"Http failure response for http://localhost:8100/api: 500 Internal Server Error","error":"<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n<meta charset=\"utf-8\">\n<title>Error</title>\n</head>\n<body>\n<pre>Error: getaddrinfo ENOTFOUND myurl.com myurl.com:443<br> &nbsp; &nbsp;at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)</pre>\n</body>\n</html>\n"}

I am not able to understand the issue and resolve it
It would have been much simpler if I could send formdata through native http.

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@ademilsonmarsiglio wrote:

IONIC 4

Chrome error log:

client:154 ./node_modules/@logisticinfotech/ionic4-datepicker/fesm5/logisticinfotech-ionic4-datepicker.js 723:44-54
"export 'IonContent' was not found in '@ionic/angular'

image.png3104×1978 1.03 MB

ionic info

Ionic:

   Ionic CLI                     : 5.2.1 (/usr/local/lib/node_modules/ionic)
   Ionic Framework               : @ionic/angular 4.0.0-beta.16
   @angular-devkit/build-angular : 0.12.4
   @angular-devkit/schematics    : 7.3.9
   @angular/cli                  : 7.3.9
   @ionic/angular-toolkit        : 1.5.1

Cordova:

   Cordova CLI       : 9.0.0 (cordova-lib@9.0.1)
   Cordova Platforms : android 8.0.0, browser 5.0.4
   Cordova Plugins   : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 2.5.1, (and 14 other plugins)

Utility:

   cordova-res : not installed
   native-run  : 0.2.7 

System:

   ios-deploy : 1.9.4
   ios-sim    : 7.0.0
   NodeJS     : v11.6.0 (/usr/local/Cellar/node/11.6.0/bin/node)
   npm        : 6.9.2
   OS         : macOS Mojave
   Xcode      : Xcode 10.2.1 Build version 10E1001

package.json

{
  "name": "ionic4-tuaagenda",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "http://ionicframework.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "~7.0.0",
    "@angular/core": "~7.0.0",
    "@angular/fire": "^5.1.1",
    "@angular/forms": "~7.0.0",
    "@angular/http": "~7.0.0",
    "@angular/platform-browser": "~7.0.0",
    "@angular/platform-browser-dynamic": "~7.0.0",
    "@angular/pwa": "^0.13.0",
    "@angular/router": "~7.0.0",
    "@angular/service-worker": "~7.0.0",
    "@ionic-native/app-version": "^5.0.0",
    "@ionic-native/call-number": "^5.0.0",
    "@ionic-native/camera": "^5.0.0",
    "@ionic-native/clipboard": "^5.0.0",
    "@ionic-native/core": "5.0.0-beta.21",
    "@ionic-native/device": "^5.0.0",
    "@ionic-native/firebase": "^5.0.0",
    "@ionic-native/in-app-browser": "^5.0.0",
    "@ionic-native/social-sharing": "^5.0.0",
    "@ionic-native/splash-screen": "5.0.0-beta.21",
    "@ionic-native/status-bar": "5.0.0-beta.21",
    "@ionic/angular": "4.0.0-beta.16",
    "@ionic/pro": "2.0.3",
    "@ionic/storage": "^2.2.0",
    "@logisticinfotech/ionic4-datepicker": "^1.1.0",
    "@types/fullcalendar": "^3.8.0",
    "@types/jquery": "^3.3.29",
    "angularfire2": "^5.1.1",
    "br-mask": "0.0.4",
    "call-number": "1.0.1",
    "cordova": "^9.0.0",
    "cordova-android": "^8.0.0",
    "cordova-android-support-gradle-release": "^3.0.1",
    "cordova-browser": "5.0.4",
    "cordova-clipboard": "1.2.1",
    "cordova-plugin-androidx": "^1.0.2",
    "cordova-plugin-androidx-adapter": "^1.1.0",
    "cordova-plugin-app-version": "0.1.9",
    "cordova-plugin-camera": "4.0.3",
    "cordova-plugin-device": "^2.0.2",
    "cordova-plugin-firebase-lib": "^5.1.1",
    "cordova-plugin-inappbrowser": "3.0.0",
    "cordova-plugin-ionic-keyboard": "^2.1.3",
    "cordova-plugin-ionic-webview": "^2.3.2",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.2",
    "cordova-plugin-whitelist": "^1.3.3",
    "cordova-plugin-x-socialsharing": "^5.4.4",
    "core-js": "^2.6.3",
    "es6-promise-plugin": "^4.2.2",
    "firebase": "^5.8.2",
    "fullcalendar": "^3.10.0",
    "jquery": "^3.3.1",
    "moment": "^2.24.0",
    "mx.ferreyra.callnumber": "0.0.2",
    "ng-fullcalendar": "^1.7.1",
    "rxjs": "~6.3.3",
    "zone.js": "^0.8.29"
  },
  "devDependencies": {
    "@angular-devkit/architect": "^0.10.7",
    "@angular-devkit/build-angular": "^0.12.4",
    "@angular-devkit/core": "^7.0.7",
    "@angular-devkit/schematics": "^7.0.7",
    "@angular/cli": "^7.0.7",
    "@angular/compiler": "~7.0.0",
    "@angular/compiler-cli": "~7.0.0",
    "@angular/language-service": "~7.0.0",
    "@ionic/angular-toolkit": "^1.2.3",
    "@ionic/lab": "1.0.18",
    "@types/jasmine": "^2.8.16",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "^10.12.21",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "^5.4.2",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.1.6",
    "xcode": "^2.0.0"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-whitelist": {},
      "cordova-plugin-statusbar": {},
      "cordova-plugin-device": {},
      "cordova-plugin-splashscreen": {},
      "cordova-plugin-ionic-webview": {
        "ANDROID_SUPPORT_ANNOTATIONS_VERSION": "27.+"
      },
      "cordova-plugin-ionic-keyboard": {},
      "cordova-plugin-x-socialsharing": {
        "ANDROID_SUPPORT_V4_VERSION": "24.1.1+"
      },
      "mx.ferreyra.callnumber": {},
      "call-number": {},
      "cordova-plugin-camera": {},
      "cordova-plugin-inappbrowser": {},
      "cordova-clipboard": {},
      "cordova-plugin-app-version": {},
      "cordova-android-support-gradle-release": {
        "ANDROID_SUPPORT_VERSION": "27.+"
      },
      "cordova-plugin-firebase-lib": {},
      "cordova-plugin-androidx": {},
      "cordova-plugin-androidx-adapter": {}
    },
    "platforms": [
      "browser",
      "android"
    ]
  }
}

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@lydia-sebastian wrote:

How to get data from viewCtrl.dismiss on another page. Below is my code…

//home.html
	<button ion-button (click)="filldata()">Fill</button>

//home.ts
	filldata(){
		this.navCtrl.push('selectPage');
	}


//select.html (A Modal PopUp)
	<ion-input [value]="name" type="text" placeholder="Name"></ion-input>
	<button ion-button (click)="onConfirm()">Save</button>

//select.ts
	onConfirm(){
       this.data = {
         username: name,
       }
		this.viewCtrl.dismiss(data); 
	}
	
	
Practically, I want to access "data" from select.ts to home.html page how do I achieve it

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@MartineNavara wrote:

How can I use routeParams in [tab] on a ion-tab-button?
I’ve tried using something like this:

<ion-tab-button [tab]="'patient/' + i"></ion-tab-button>

This works fine for the routing to the tab. But the tab is not recognized als active.
Same when using [routerLink] instead of [tab].
What is the right way to provide the patientId to the route on ion-tab-button?

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@faisalalblooshi93 wrote:

Hi I want to upload files such as images pdf etc to firebase from the browser, i don’t want it to be for the native app but it’s a PWA so please help me for the best solution + how to convert my file into blob and all please help

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@roxannelighting wrote:

I wrote 2 eventemitter inside the ionic range component code like “ionStart” and “ionStop”. These events works fine on running on device but not on production release. I figured out that on production release or if i run on device with --prod flag, the observers of my custom eventemitters are empty as you can see in the image below. I spend lots of time to solve this issue with no success. Please help me!

ionic-range.png1474×676 22.4 KB

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@EniolaTade wrote:

prosper.PNG522×558 18.2 KB

prosper2.PNG817×200 14 KB

How do i solve this problem?

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@pdj wrote:

I want to have classic style of select box so I use

<select class="box" name="al">
            <option value="all">all</option>
            <option value="a">A</option>
            <option value="b">B</option>
        </select>

but in this case…how can I detect value is selected?
I don’t think I can use jquery…

I still don’t understand why ion-select is too much different than classic select box…
I don’t want to select any value from popup when I use selectbox.

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@CSantos8 wrote:

I’m listing the devices of my phone in a ionic 4 app using Angular7 and cordova. Calling navigator.mediaDevices.enumerateDevices() I got all audioinput and videoinput but the labels are empty. I know I have to call to this method when the audio and video permissions are granted and I do that.

Connecting to a webrtc sample through Android browser works but through Android WebView not.

Why the labels are empty? How can i list all devices of my android phone?
Thanks

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@EnzoDLP wrote:

Hello,

I am currently developing an application with Ionic. I use for this, a model of the application to do the same, with colors, fonts (in px), image, etc …

My question is, should I use the EM or PX unit for the font ?

I ask myself this question because for me the unit EM is supposed to be more adapted to all types of screen. However, the fonts transmitted with the models are in PX and therefore more complicated to make a model identical with the EM unit.

I would just like to know if the EM unit is really useful or not, using Ionic.

Thanks for your help

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@lobaton wrote:

I have a problem when building my ionic app, do not find build tools but in sdk manager I have installed several versions of this, someone knows how I can fix it?

already try to do it with different points proposed as a solution but it does not work–

A problem occurred evaluating project ‘:CordovaLib’.

No installed build tools found. Install the Android build tools version 19.1.0 or higher

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cli packages: (/usr/local/lib/node_modules)

@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 : 3.1.8
Cordova Platforms  : android 7.0.0
Ionic Framework    : ionic-angular 3.9.2

System:

Node  : v8.15.0
npm   : 6.4.1
OS    : macOS
Xcode : Xcode 10.2.1 Build version 10E1001

Environment Variables:
ANDROID_HOME : not set

Misc:

backend : pro

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cordova requirements
Android Studio project detected

Requirements check results for android:
Java JDK: installed 1.8.0
Android SDK: installed true
Android target: not installed
android: Command failed with exit code ENOENT
Gradle: installed /usr/local/Cellar/gradle/5.4.1/bin/gradle
(node:1022) UnhandledPromiseRejectionWarning: CordovaError: Some of requirements check failed

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@droggam wrote:

Hello I am pretty new to Ionic 4 I guess but whatever I try to inject nav controller or an external service
in the component constructor, I get an error about object in the console…
I have an ionic module in the app module of that component what am I missing here?

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@jason314 wrote:

I have an Ionic v3 project - ionic-angular 3.9.6 . I build it with CLI 4.1.1.

If I upgrade the CLI to the latest 5.2.1, will I still be able to build my Ionic 3 project?

I ask because I’m starting to port my Ionic 3 project to Ionic 4 and need to be able to build both the legacy Ionic 3 project and the new Ionic 4 project.

Thanks
Jason

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