How to solve "error TS2307: Cannot find module 'angular'" issue in development using sharpeoint page framework

In the WebPart.ts file. I use the import * as angular from angular to reference the external source that pointing to the angular CDN location.

{
  "entries": [
    {
      "entry": "./lib/webparts/itRequest/ItRequestWebPart.js",
      "manifest": "./src/webparts/itRequest/ItRequestWebPart.manifest.json",
      "outputPath": "./dist/it-Request.bundle.js"
    }
  ],
  "externals": {
    "@microsoft/sp-client-base": "node_modules/@microsoft/sp-client-base/dist/sp-client-base.js",
    "@microsoft/sp-client-preview": "node_modules/@microsoft/sp-client-preview/dist/sp-client-preview.js",
    "@microsoft/sp-lodash-subset": "node_modules/@microsoft/sp-lodash-subset/dist/sp-lodash-subset.js",
    "office-ui-fabric-react": "node_modules/office-ui-fabric-react/dist/office-ui-fabric-react.js",
    "react": "node_modules/react/dist/react.min.js",
    "react-dom": "node_modules/react-dom/dist/react-dom.min.js",
    "react-dom/server": "node_modules/react-dom/dist/react-dom-server.min.js",
      "angular": {
            "path": "https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.8/angular.min.js",
            "globalName": "angular"
          }
  },
  "localizedResources": {
    "itRequestStrings": "webparts/itRequest/loc/{locale}.js"
  }
}

however the syntax error already is shown indicate the type script can not find the angular module.



after i launch the app with Gulp Serve. the same erorr was encounter on the application launch



the root cause of this issue is that the project did not contain the angular TypeScript typing. since it is from the external source. we just need to install the angular TypeScript typing to fix the issue.

here is the steps to add the type script typing to the project.

1. use npm install tsd to install the tsd command (if the tsd is not installed.)

2. run tsd install angular --save to install the angular TypeScript typing. and angularjs will be found under typing folder.







 for more information, please visit the following link. it really save my day...

Use existing JavaScript libraries in SharePoint Framework client-side web parts