Tree 无法使用SystemJS.config.js加载ng2树

Tree 无法使用SystemJS.config.js加载ng2树,tree,angular5,systemjs,Tree,Angular5,Systemjs,我正在使用Angular6。已安装ng2-tree。但是,当我尝试加载相同内容时,出现以下错误- fetch.js:32 GET http://127.0.0.1:8080/uuid/v4 404 (Not Found) (index):23 Error: Fetch error: 404 Not Found Instantiating http://127.0.0.1:8080/uuid/v4 Loading http://127.0.0.1:8080/node_modules/

我正在使用Angular6。已安装ng2-tree。但是,当我尝试加载相同内容时,出现以下错误-

fetch.js:32 GET http://127.0.0.1:8080/uuid/v4 404 (Not Found)   
(index):23 Error: Fetch error: 404 Not Found
  Instantiating http://127.0.0.1:8080/uuid/v4
  Loading http://127.0.0.1:8080/node_modules/ng2-tree/src/tree.js
  Loading dist/main.js
    at fetch.js:37




Configurations - 
systemjs.config.js :
map: {
    "ng2-tree" : 'npm:ng2-tree',   
    ///bundles/ng2-tree.umd.min.js
  },
  packages: {

    'ng2-tree' : {main: 'index.js', defaultExtension: 'js'},   

  }


Component : 
import { TreeModel , TreeComponent , NodeEvent,TreeModelSettings } from 'ng2-tree';
有人能建议需要做什么吗?
我需要更新配置文件吗???

您需要如下设置配置文件:

System.config({
    map: {
      'ng2-tree': 'npm:ng2-tree/bundles/ng2-tree.umd.min.js',
    }
}