Version: 5.x

Troubleshooting

This section attempts to outline issues that users frequently encounter when first getting accustomed to using React Navigation. These issues may or may not be related to React Navigation itself.

Before troubleshooting an issue, make sure that you have upgraded to the latest available versions of the packages. You can install the latest versions by installing the packages again (e.g. npm install package-name).

I'm getting an error "Unable to resolve module" after updating to the latest version

This might happen for 3 reasons:

Stale cache of Metro bundler

If the module points to a local file (i.e. the name of the module starts with ./), then it's probably due to stale cache. To fix this, try the following solutions.

If you're using Expo, run:

expo start -c

If you're not using Expo, run:

npx react-native start --reset-cache

Missing peer dependency

If the module points to an npm package (i.e. the name of the module doesn't with ./), then it's probably due to a missing peer dependency. To fix this, install the dependency in your project:

npm install name-of-the-module

Sometimes it might even be due to a corrupt installation. If clearing cache didn't work, try deleting your node_modules folder and run npm install again.

Missing extensions in metro configuration

Sometimes the error may look like this:

Error: While trying to resolve module "@react-navigation/native" from file "/path/to/src/App.js", the package "/path/to/node_modules/@react-navigation/native/package.json" was successfully found. However, this package itself specifies a "main" module field that could not be resolved ("/path/to/node_modules/@react-navigation/native/src/index.tsx"

This can happen if you have a custom configuration for metro and haven't specified ts and tsx as valid extensions. These extensions are present in the default configuration. To check if this is the issue, look for a metro.config.js file in your project and check if you have specified the sourceExts option. It should at least have the following configuration:

sourceExts: ['js', 'json', 'ts', 'tsx'];

If it's missing these extensions, add them and then clear metro cache as shown in the section above.

I'm getting "SyntaxError in @react-navigation/xxx/xxx.tsx"

This might happen if you have an old version of the metro-react-native-babel-preset package. The easiest way to fix it is to delete your lock file and reinstall your dependencies.

If you use npm:

rm package-lock.json
npm install

If you use yarn:

rm yarn.lock
yarn

I'm getting an error "null is not an object (evaluating 'RNGestureHandlerModule.default.Direction')"

This and some similar errors might occur if you didn't link the react-native-gesture-handler library.

Linking is automatic from React Native 0.60, so if you have linked the library manually, first unlink it:

react-native unlink react-native-gesture-handler

If you're testing on iOS and use Mac, make sure you have run pod install in the ios/ folder:

cd ios
pod install
cd ..

Now rebuild the app and test on your device or simulator.

Nothing is visible on the screen after adding a View

If you wrap the container in a View, make sure the View stretches to fill the container using flex: 1:

import * as React from 'react';
import { View } from 'react-native';
import { NavigationContainer } from '@react-navigation/native';
export default function App() {
return (
<View style={{ flex: 1 }}>
<NavigationContainer>{/* ... */}</NavigationContainer>
</View>
);
}

I get the warning "Non-serializable values were found in the navigation state"

This can happen if you are passing non-serializable values such as class instances, functions etc. in params. React Navigation warns you in this case because this can break other functionality such state persistence, deep linking etc.

Example of common use cases for passing functions in params are the following:

  • To pass a callback to use in a header button. This can be achieved using navigation.setOptions instead. See the guide for header buttons for examples.
  • To pass a callback to the next screen which it can call to pass some data back. You can usually achieve it using navigate instead. See the guide for params for examples.
  • To pass complex data to another screen. Instead of passing the data params, you can store that complex data somewhere else (like a global store), and pass an id instead. Then the screen can get the data from the global store using the id.

If you don't use state persistence or deep link to the screen which accepts functions in params, then the warning doesn't affect you and you can safely ignore it. To ignore the warning, you can use YellowBox.ignoreWarnings.

Example:

import { YellowBox } from 'react-native';
YellowBox.ignoreWarnings([
'Non-serializable values were found in the navigation state',
]);

App is not working properly when connected to Chrome Debugger

When the app is connected to Chrome Debugger (or other tools that use Chrome Debugger such as React Native Debugger) you might encounter various issues related to timing.

This can result in issues such as button presses taking a long time to register or not working at all, gestures and animations being slow and buggy etc. There can be other functional issues such as promises not resolving, timeouts and intervals not working correctly etc. as well.

The issues are not related to React Navigation, but due to the nature of how the Chrome Debugger works. When connected to Chrome Debugger, your whole app runs on Chrome and communicates with the native app via sockets over the network, which can introduce latency and timing related issues.

So, unless you are trying to debug something, it's better to test the app without being connected to the Chrome Debugger. If you are using iOS, you can alternatively use Safari to debug your app which debugs the app on the device directly and does not have these issues, though it has other downsides.