title: React Native Error: Ambiguous resolution
body: <p>When I try to run my React Native app on the iOS simulator, I'm presented with a red screen with the following error:</p>
  
  <blockquote>
    <p>Ambiguous resolution: module
    '/Users/my-user/Documents/my-RN-app/app/index.js' tries to require
    'react-native-vector-icons', but there are several files providing
    this module. You can delete or fix them:</p>
    
    <p>/Users/my-user/Documents/my-RN-app/ios/build/Build/Products/Debug-iphonesimulator/MyApp.app/my-RN-app/node_modules/react-native/local-cli/core/__fixtures__/files/package.json</p>
    
    <p>/Users/my-user/Documents/my-RN-app/node_modules/react-native/local-cli/core/__fixtures__/files/package.json</p>
  </blockquote>
  
  <p>However, both of those above files (the package.json files) are missing. I had actually gotten this error before, so I decided to delete the package.json file in the first directory location mentioned above (under ios/build/.. etc.) and refreshed the app and it loaded just fine. Now, after trying to start up my app again in the iOS simulator, I am back to the same error, but I cannot delete the package.json file because it doesn't even exist now in either location.</p>
  
  <p>I've tried to just comment out the import of the <code>react-native-vector-icons</code> lib in my app/index.js file and restarting the sim, but the error still appears.</p>
  
  <p>So finally, I've tried this:</p>
  
  <ol>
  <li><code>sudo rm -rf node_modules</code> (I get "permission denied" if I don't use <code>sudo</code> although it appears I have full read/write permission on all the files/folders in this project)</li>
  <li><code>sudo rm -rf ios/build</code></li>
  <li><code>npm install</code></li>
  <li><code>cd ios &amp;&amp; pod install</code></li>
  <li><code>react-native link</code></li>
  </ol>
  
  <p>And then back into Xcdoe: Product > Clean, after which I ran the simulator again. Still the same error.</p>
  
  <p>As requested, here is my package.json file:</p>
  
  <pre><code> {
    "name": "myApp",
    "version": "0.0.1",
    "private": true,
    "scripts": {
      "start": "node node_modules/react-native/local-cli/cli.js start",
      "run-ios": "node_modules/.bin/react-native run-ios",
    },
    "dependencies": {
      "art": "^0.10.1",
      "auto-bind": "^1.1.0",
      "axios": "^0.16.1",
      "eslint-plugin-react-native": "^2.3.1",
      "jwt-decode": "^2.2.0",
      "moment": "^2.19.1",
      "native-base": "^2.3.1",
      "prop-types": "^15.5.8",
      "pubnub": "^4.18.0",
      "react": "^16.0.0",
      "react-native": "^0.49.3",
      "react-native-actionsheet": "^2.3.0",
      "react-native-device-info": "^0.11.0",
      "react-native-fabric": "^0.5.1",
      "react-native-fingerprint-scanner": "^2.2.1",
      "react-native-flip-card": "^3.5.2",
      "react-native-google-analytics-bridge": "^5.3.3",
      "react-native-haptic": "^1.0.5",
      "react-native-image-base64": "^0.1.3",
      "react-native-image-picker": "^0.26.7",
      "react-native-image-resizer": "^1.0.0",
      "react-native-keyboard-aware-scroll-view": "^0.4.3",
      "react-native-keyboard-spacer": "^0.4.1",
      "react-native-keychain": "^1.2.1",
      "react-native-maps": "^0.17.1",
      "react-native-modal-dropdown": "^0.5.0",
      "react-native-mplayer": "^1.0.1",
      "react-native-notifications-badge-extensions": "^1.0.5",
      "react-native-permissions": "^0.2.7",
      "react-native-pie": "^0.4.0",
      "react-native-router-flux": "^4.0.0-beta.26",
      "react-native-snap-carousel": "^3.2.3",
      "react-native-tag-input": "0.0.18",
      "react-native-tooltip": "^5.2.0",
      "react-native-uuid-generator": "^3.0.2",
      "react-native-vector-icons": "^4.3.0",
      "react-native-version-number": "^0.1.3",
      "react-native-voice": "^0.2.5",
      "react-navigation": "^1.2.0",
      "sprintf-js": "^1.0.3",
      "validator": "^9.2.0"
    },
    "devDependencies": {
      "babel-jest": "18.0.0",
      "babel-preset-react-native": "^4.0.0",
      "enzyme": "^3.3.0",
      "enzyme-adapter-react-16": "^1.1.1",
      "enzyme-to-json": "^3.3.1",
      "eslint": "^3.14.1",
      "eslint-config-airbnb": "^14.1.0",
      "eslint-plugin-import": "^2.2.0",
      "eslint-plugin-jsx-a11y": "^4.0.0",
      "eslint-plugin-react": "^7.5.1",
      "jest": "18.1.0",
      "jest-serializer-enzyme": "^1.0.0",
      "jsdom": "11.6.2",
      "jsdom-global": "3.0.2",
      "metro-bundler": "^0.20.0",
      "react-addons-test-utils": "^15.6.2",
      "react-dom": "^16.2.0",
      "react-native-mock": "^0.3.1",
      "react-test-renderer": "16.0.0-alpha.12",
      "sinon": "^4.1.2"
    },
    "resolutions": {
      "moment": "2.19.1"
    }
  }
  </code></pre>