title: React Native version mismatch JavaScript version :0.54.3 Native version:0.50.3
body: <p>
  to solve an other Problem I have to upgrade react native. I used `react-native-git-upgrade 0.54.3` for updating. Is there any idea to upgrade the native verion? </p>
  
  <p>To start my project I used <code>create-react-native-app</code></p>
  
  <p>my package.json contains that:</p>
  
  <pre><code>{
    "name": "########",
    "version": "0.1.0",
    "private": true,
    "devDependencies": {
      "jest-expo": "23.0.0",
      "react-native-scripts": "1.8.1",
      "react-test-renderer": "16.0.0"
    },
    "main": "./node_modules/react-native-scripts/build/bin/crna-entry.js",
    "scripts": {
      "start": "react-native-scripts start",
      "eject": "react-native-scripts eject",
      "android": "react-native-scripts android",
      "ios": "react-native-scripts ios",
      "test": "node node_modules/jest/bin/jest.js --watch"
    },
    "jest": {
      "preset": "jest-expo"
    },
    "dependencies": {
      "@expo/vector-icons": "^6.3.1",
      "exp": "^47.4.4",
      "expo": "^23.0.4",
      "react": "16.3.0-alpha.1",
      "react-native": "0.54.3",
      "react-native-swiper": "^1.5.13",
      "react-navigation": "^1.5.8"
    }
  }
  </code></pre>
  
  <p>The image is describing my problem very exactly.</p>
  
  <p><a href="https://i.stack.imgur.com/JSQl4.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JSQl4.jpg" alt="The image is describing my problem very exactly"></a></p>
  
  <p>If try to execute watchman cmd says that watchman is unknown</p>
  
  <h1>update: <br/></h1>
  
  <p>I updated my package.json:</p>
  
  <pre><code>{
    "name": "ProdPrototype",
    "version": "0.1.0",
    "private": true,
    "devDependencies": {
      "jest-expo": "^25.1.0",
      "react-native-scripts": "^1.11.1",
      "react-test-renderer": "^16.2.0"
    },
    "main": "./node_modules/react-native-scripts/build/bin/crna-entry.js",
    "scripts": {
      "start": "react-native-scripts start",
      "eject": "react-native-scripts eject",
      "android": "react-native-scripts android",
      "ios": "react-native-scripts ios",
      "test": "node node_modules/jest/bin/jest.js --watch"
    },
    "jest": {
      "preset": "jest-expo"
    },
    "dependencies": {
      "@expo/vector-icons": "^6.3.1",
      "connect": "^3.6.6",
      "exp": "^50.0.5",
      "expo": "^25.0.0",
      "react": "16.0.0",
      "react-native": "https://github.com/expo/react-native/archive/sdk-24.0.0.tar.gz",
      "react-native-swiper": "^1.5.13",
      "react-navigation": "^1.5.8"
    }
  }
  </code></pre>
  
  <p>deleted node_modules and ran <code>npm install</code> didn't worked, same error.</p>