Javascript – React Native version Mismatch – Native version: 0.59.5

androidjavascriptreact-native

I am getting this error on Android simulator:

React Native version mismatch:
Javascript version: 0.58.5
Native version: 0.59.5

I have upgraded React Native, modules, Android studio and pretty much everything i could. Everything works fine on iOS, this happens only on Android. Build is succesful

Package.json

{
  "name": "MyProject",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
  },
  "dependencies": {
    "@react-native-community/async-storage": "^1.3.3",
    "latlon-geohash": "^1.1.0",
    "react": "16.8.3",
    "react-native": "0.59.5",
    "react-native-firebase": "^5.2.3",
    "react-native-gesture-handler": "^1.0.16",
    "react-native-keyboard-aware-scroll-view": "^0.8.0",
    "react-native-linear-gradient": "^2.5.3",
    "react-native-maps": "^0.24.2",
    "react-native-vector-icons": "^6.4.2",
    "react-navigation": "^3.3.2",
    "react-redux": "^6.0.1",
    "redux": "^4.0.1"
  },
  "devDependencies": {
    "babel-core": "^7.0.0-bridge.0",
    "babel-jest": "24.1.0",
    "jest": "24.1.0",
    "metro-react-native-babel-preset": "0.52.0",
    "react-test-renderer": "16.6.3"
  },
  "jest": {
    "preset": "react-native"
  }
}

Build.gradle

buildscript {
    ext {
        buildToolsVersion = "28.0.3"
        minSdkVersion = 16
        compileSdkVersion = 28
        targetSdkVersion = 28
        supportLibVersion = "28.0.0"
        googlePlayServicesVersion = "15.0.1"
        androidMapsUtilsVersion = "0.5+"
    }
    repositories {
        google()
        //mavenLocal()        
        jcenter()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.0'
        classpath 'com.google.gms:google-services:4.2.0'
      
    }
}

allprojects {
    repositories {
        mavenLocal()
        google()
        jcenter()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
        }
    }
}

/*
task wrapper(type: Wrapper) {
    gradleVersion = '4.7'
    distributionUrl = distributionUrl.replace("bin", "all")
}*/





   dependencies {
        implementation project(':react-native-firebase')
        implementation project(':react-native-gesture-handler')
        implementation fileTree(dir: "libs", include: ["*.jar"])
        implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
        implementation "com.facebook.react:react-native:+"  // From node_modules
        implementation project(':react-native-linear-gradient')
        implementation project(':react-native-maps') 
        implementation "com.google.android.gms:play-services-base:16.0.1"
        implementation project(':@react-native-community_async-storage')
    
        implementation ("com.google.firebase:firebase-core:16.0.7") {
            exclude group: 'com.google.android.gms'
        } 
    
        implementation ("com.google.firebase:firebase-auth:16.1.0") {
            exclude group: 'com.google.android.gms'
        } 
    
        implementation ("com.google.firebase:firebase-database:16.0.6") {
            exclude group: 'com.google.android.gms'
        }
    }

I have tried closing all terminals, yarn install, creating new android device. I am guessing it has to do with actual version of the React Native in Package.json, but it is the 0.59.5 and when I searched whole project I cant find any reference to 0.58.5 anywhere.

Best Answer

I fixed the problem with help from github forum. This error was caused in my case by having Android 9 in simulator. Installing new device with Android version 8 fixed the issue.

2017 — 2021 update

Since 2009 when this question was asked, JavaScript has evolved significantly. All other answers are now obsolete or overly complicated. Here is the current best practice:

function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function demo() {
  console.log('Taking a break...');
  await sleep(2000);
  console.log('Two seconds later, showing sleep in a loop...');

  // Sleep in loop
  for (let i = 0; i < 5; i++) {
    if (i === 3)
      await sleep(2000);
    console.log(i);
  }
}

demo();

This is it. `await sleep(<duration>)`.

Or as a one-liner:

await new Promise(r => setTimeout(r, 2000));

Note that,

await can only be executed in functions prefixed with the async keyword, or at the top level of your script in an increasing number of environments.
await only pauses the current async function. This means it's not blocking the execution of the rest of the script, which is what you want in the vast majority of the cases. If you do want a blocking construct, see this answer using Atomics.wait, but note that most browsers will not allow it on the browser's main thread.

Two new JavaScript features (as of 2017) helped write this "sleep" function:

Promises, a native feature of ES2015 (aka ES6). We also use arrow functions in the definition of the sleep function.
The async/await feature lets the code explicitly wait for a promise to settle (resolve or reject).

Compatibility

promises are supported in Node v0.12+ and widely supported in browsers, except IE
async/await landed in V8 and has been enabled by default since Chrome 55 (released in Dec 2016)
- it landed in Node 7 in October 2016
- and also landed in Firefox Nightly in November 2016

If for some weird reason you're using Node older than 7 (which has reached end of life), or are targeting old browsers, async/await can still be used via Babel (a tool that will transpile JavaScript + new features into plain old JavaScript), with the transform-async-to-generator plugin.

Javascript – Loop inside React JSX

Think of it like you're just calling JavaScript functions. You can't use a for loop where the arguments to a function call would go:

return tbody(
    for (var i = 0; i < numrows; i++) {
        ObjectRow()
    } 
)

See how the function tbody is being passed a for loop as an argument – leading to a syntax error.

But you can make an array, and then pass that in as an argument:

var rows = [];
for (var i = 0; i < numrows; i++) {
    rows.push(ObjectRow());
}
return tbody(rows);

You can basically use the same structure when working with JSX:

var rows = [];
for (var i = 0; i < numrows; i++) {
    // note: we are adding a key prop here to allow react to uniquely identify each
    // element in this array. see: https://reactjs.org/docs/lists-and-keys.html
    rows.push(<ObjectRow key={i} />);
}
return <tbody>{rows}</tbody>;

Incidentally, my JavaScript example is almost exactly what that example of JSX transforms into. Play around with Babel REPL to get a feel for how JSX works.

Best Answer

Related Solutions

Javascript – the JavaScript version of sleep()

2017 — 2021 update

This is it. await sleep(<duration>).

Compatibility

Javascript – Loop inside React JSX

Related Topic

This is it. `await sleep(<duration>)`.