"Missing Command Error" choose image from gallary in ionic3?

#1

Hello,
i have implemened the choose multiple image funcatioanality in ionic3 but i got errro after “Missing Command Error” in console i have propery installed image-picker plugin but i don know how to resolve this ?

  private openGallery (): void {
    let options = {
      maximumImagesCount: 8,
      width: 500,
      height: 500,
      quality: 75
    }

type or paste code here

   this.imagePicker.getPictures(options).then((results) => {
      for (var i = 0; i < results.length; i++) {
          console.log('Image URI: ' + results[i]);
      }
    }, (err) => {
        console.log("errr", + err);
     });
  }

Package.json file:
{
“name”: “firstapp”,
“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/core”: “~4.10.0”,
@ionic-native/image-picker”: “^4.11.0”,
@ionic-native/network”: “^4.10.1”,
@ionic-native/splash-screen”: “~4.10.0”,
@ionic-native/status-bar”: “^4.10.1”,
@ionic/storage”: “2.1.3”,
“cordova-android”: “7.0.0”,
“cordova-browser”: “5.0.3”,
“cordova-plugin-device”: “^2.0.2”,
“cordova-plugin-ionic-keyboard”: “^2.0.5”,
“cordova-plugin-ionic-webview”: “^1.1.19”,
“cordova-plugin-network-information”: “^2.0.1”,
“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”,
“ionic-select-searchable”: “^2.8.1”,
“ionic2-super-tabs”: “^4.3.0”,
“ionicons”: “3.0.0”,
“rxjs”: “5.5.11”,
“sw-toolbox”: “3.6.0”,
“zone.js”: “0.8.26”
},
“devDependencies”: {
@ionic/app-scripts”: “3.1.11”,
“typescript”: “~2.6.2”
},
“description”: “An Ionic project”,
“cordova”: {
“plugins”: {
“cordova-plugin-network-information”: {},
“cordova-plugin-whitelist”: {},
“cordova-plugin-device”: {},
“cordova-plugin-splashscreen”: {},
“cordova-plugin-ionic-webview”: {},
“cordova-plugin-ionic-keyboard”: {},
“cordova-plugin-telerik-imagepicker”: {
“PHOTO_LIBRARY_USAGE_DESCRIPTION”: “App wants to access your gallery”
},
“cordova-plugin-statusbar”: {}
},
“platforms”: [
“browser”,
“android”
]
}
}