title: how to get rid of typescript error message "Cannot find module 'localforage'"
body: <p>I am doing an ionic 2/cordova project and am using vim with typescript support.</p>
  
  <p>i have the following line in my code:</p>
  
  <pre><code>import * as localforage from "localforage";
  </code></pre>
  
  <p>the code is running without problems but the typescript compiler gives the following error</p>
  
  <pre><code>/path/to/file.ts|2 col 30 error| Cannot find module 'localforage'.
  </code></pre>
  
  <p>any hints how to avoid that error?</p>
  
  <p>UPDATE</p>
  
  <pre><code>import {Injectable} from "angular2/core";
  import * as localforage from "localforage";
  
  @Injectable()
  export class DbService {
  
    constructor() {
      //this.run();
    }
  
    setKeyVal(k, v){
      console.log("db service setKeyVal");
      let ran = Math.floor(Math.random() * 1000) + 1;
      localforage.setItem(k, device.uuid).then(function () {
        return localforage.getItem(k);
      }).then(function (value) {
        console.log(value);
        // we got our value
        console.log(navigator.connection.type);
        console.log("setItem then");
      }).catch(function (err) {
        // we got an error
        console.log("setItem catch");
      });
    }
  }
  </code></pre>
  
  <p>UPDATE 1 - typings.json</p>
  
  <pre><code>{
    "dependencies": {},
    "devDependencies": {},
    "ambientDependencies": {
      "cordova-ionic": "registry:dt/cordova-ionic#0.0.0+20160316155526",
      "es6-shim": "github:DefinitelyTyped/DefinitelyTyped/es6-shim/es6-shim.d.ts#4de74cb527395c13ba20b438c3a7a419ad931f1c",
      "localforage": "registry:dt/localforage#0.0.0+20160316155526"
    }
  }
  </code></pre>
  
  <p>UPDATE 2 - tsconfig.json</p>
  
  <pre><code>{
    "compilerOptions": {
      "target": "es5",
      "module": "commonjs",
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true
    },
    "filesGlob": [
      "**/*.ts",
      "!node_modules/**/*"
    ],
    "exclude": [
      "node_modules",
      "typings/main",
      "typings/main.d.ts"
    ],
    "compileOnSave": false,
    "atom": {
      "rewriteTsconfig": false
    }
  }
  </code></pre>