打字稿错误找不到姓名＆＃39; Observable＆＃39;在@ ionic-native / geolocation中

Question

我正在使用Ionic 2并尝试使用@ ionic-native / geolocation，当我做离子时：我的项目上的serv我得到了这个错误： 找不到姓名＆＃39; Observable＆＃39;。

tack.imgur.com/dXNDc.png

这是我的package.json文件内容：

{
  "author": "",
  "cordovaPlatforms": [],
  "cordovaPlugins": [
    "cordova-plugin-whitelist",
    "cordova-plugin-console",
    "cordova-plugin-statusbar",
    "cordova-plugin-device",
    "cordova-plugin-splashscreen",
    "ionic-plugin-keyboard",
    "cordova-plugin-geolocation"
  ],
  "dependencies": {
    "@angular/common": "4.0.2",
    "@angular/compiler": "4.0.2",
    "@angular/compiler-cli": "4.0.2",
    "@angular/core": "4.0.2",
    "@angular/forms": "4.0.2",
    "@angular/http": "4.0.2",
    "@angular/platform-browser": "4.0.2",
    "@angular/platform-browser-dynamic": "4.0.2",
    "@ionic-native/core": "3.6.1",
    "@ionic-native/splash-screen": "3.4.2",
    "@ionic-native/status-bar": "3.4.2",
    "@ionic/storage": "2.0.1",
    "ionic-angular": "^3.1.1",
    "ionicons": "3.0.0",
    "rxjs": "^5.3.1",
    "sw-toolbox": "3.4.0",
    "zone.js": "^0.8.5"
  },
  "devDependencies": {
    "@ionic/app-scripts": "1.3.4",
    "typescript": "~2.2.1"
  },
  "homepage": "",
  "name": "Wakeb",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "clean": "ionic-app-scripts clean",
    "build": "ionic-app-scripts build",
    "ionic:build": "ionic-app-scripts build",
    "ionic:serve": "ionic-app-scripts serve",
    "watch": "ionic-app-scripts watch"
  },
  "-vs-binding": {
    "ProjectOpened": [
      "ionic:build",
      "ionic:serve"
    ]
  }
}

提前谢谢。

Answer 1

尝试删除node_modules文件夹并运行新的npm install。您可能还想尝试运行ionic plugin remove cordova-plugin-geolocation并重新添加ionic plugin add cordova-plugin-geolocation

Answer 2

我没有添加@ ionic-native / geolocation，它在添加后现在正在使用，谢谢。

Answer 3

您的package.json缺少@ionic-native/geolocation。

执行：

 npm install --save @ionic-native/geolocation

安装它。