Ionic 2:安装 Google 地图插件时出错

Ionic 2: Error installing Google Maps plugin

我正在尝试为 Google 地图安装此插件:https://ionicframework.com/docs/native/google-maps/ 但出现错误:

Error: Failed to fetch plugin https://github.com/mapsplugin/cordova-plugin-googlemaps-sdk via registry. Probably this is either a connection problem, or plugin spec is incorrect. Check your connection and plugin name/version/URL. Error: npm: Command failed with exit code 1 Error output: npm ERR! code 1

谢谢!!

$> git clone  https://github.com/mapsplugin/cordova-plugin-googlemaps-sdk

$> cd (path to your project)

$> cordova plugin add (path to)/cordova-plugin-googlemaps-sdk