Expo babel config

Expo babel config. However, the source code is written in JavaScript in an Expo app that runs in multiple different environments. When I'm trying to import files from root directory with import {Config} from "~/Config/Config" the "Unable to resolve module" appears. api. note that you should not change from babel-preset-expo to 'module:metro-react-native-babel-preset' - that is not required and will cause problems for you Sep 10, 2020 · I have the preset metro-react-native-preset already installed and my babel config looks like the following: babel. A unit test is used to check the smallest unit of code, usually a function. ts) is used for configuring Expo Prebuild generation, how a project loads in Expo Go, and the OTA update manifest. js: boolean, uses the default set by @babel/plugin-transform-typescript. json is useful if you have multiple packages (ie multiple package. cjs. I am new to Expo and React Native. Now you can use the Drawer layout to create a drawer navigator: import { Drawer } from "expo-router/drawer"; export default function Layout() {. 6. Feb 20, 2019 · I am trying to use babel-plugin-auto-import to auto-import React. Configure Babel. Dec 18, 2022 · the plugin is not supposed to go into expo config, as it is babel plugin, not expo one. Modify the Metro config. json babel-preset-expo. Nov 23, 2021 · Given that information. It's fixed now by just deleting node modules and re-install native wind node modules. 3. js file in my project root. You signed out in another tab or window. Here is my babel. You can see the changel Nov 11, 2019 · 6. env file in your babel. js on react native project. js to load it: Unit test. Here is an example of how to use api. Here's the one from my project running Expo's SDK 32: Babel configuration for react-native Expo. Maybe you have 3rd party libraries that you don't want to be transformed/changed by babel. exports = function (api) { api. step 1. Here is a link for a more detailed explanation of Apr 28, 2017 · Update: Expo v32. js when targeting web, this means that you get optimal tree-shaking and dead-code-elimination. Have installed both babel-plugin-inline-dotenv and dotenv (and tried without dotenv installed too), both options haven't worked. The results are as follows (measured against a hello world app): ~2x Faster for initial bundling. js (you should have 'react-native-reanimated/plugin' listed there - also see the above link for details) 2) Make sure you reset build cache after updating the config, run: yarn start --reset-cache. What is a config plugin. info Disk size without dependencies: "68KB" info Disk size with unique dependencies: "68KB" info Disk size with transitive dependencies: "68KB" info Number of shared dependencies: 0 Will use the native built-in instead of trying to polyfill behavior for any plugins that require one. exports = { presets: ['module:metro-react-native-babel-preset'], plugins: ['react-native-reanimated/plugin', 'nativewind/babel'], }; Need some one help to fix this issue. js for you. To configure a monorepo with Metro manually, there are two main changes: Sep 11, 2020 · ReactNative with Expo という構成で環境変数を設定しようと思ったら意外にハマったので備忘録. The use of . Applies the babel-preset-expo preset that extends the default React Native preset and adds support for decorators, tree-shaking web packages, and loading font icons with optional native dependencies if they're installed. 3. When enabled, type-only class fields are only removed if they are prefixed with the declare modifier: Mar 22, 2022 · 1. This plugin allows you to add new "root" directories that contain your modules. allowDeclareFields boolean, defaults to false. To use Next. I am facing some problems in using absolute paths while importing the modules. I combined the two config into one babel. prettierrc ). 9 and 2. Spin up a new React Native TypeScript project: `npx react-native init MyApp --template react-native-template-typescript` 2. Here is the code for babel. Aug 11, 2023 · . I came across the well known babel-plugin-module-resolver plugin but i am unable to use it properly. root. plugins: ['react-native-reanimated/plugin'], step 3 When trying to run the code after close the terminal I still I'm facing same issue. json se estiver usando JavaScript). Jest identifies a file with the . And you can test the file is running by putting a console. js file: Dec 29, 2022 · I'm using 'babel-plugin-root-import' and typescript to configure absolute path. js file Sep 24, 2022 · 1) Make sure reanimated's babel plugin is installed in your babel. This means that Babel will only evaluate the configuration function once, and then reuse the cached result for subsequent compilations. By default "node_modules" folder is ignored by transformers. js, isso serve para quando o React Native consiga entender os caminhos quando montar o bundle. This is akin to ncc, the tool we use to make Create Expo App download in ~1 second. json I'm completely new to React Native and following a tutorial so bear with me please, the following is my StackNavigator. Than I started dev-client (npx expo start --dev-client --clear) and I try to open Android but I got some error: First, metro-react-native-babel-preset. 0. js was being ignored. I'm using react-native 0. -import Config from "react-native-config"; -const apiUrl = Config. mjs, cjs or . To review, open the file in an editor that reveals hidden Unicode characters. Same thing happening to me, but with module-resolver, since I want to have absolute imports, it took me a while to realize that the entire babel. or. cjs, then you will need to change your config file to be commonjs, i. yarn add react-native-reanimated react-native-gesture-handler and then exit server then run expo r -c This worked for me. In my case where I was running LTE Node 12. . . js 12. useSpread . > distApp // React app files (src folder down below) transpiled to Node v10. return <Drawer />; Oct 25, 2017 · Babel configuration for react-native Expo. json file, or an equivalent one using the supported extensions , in this root directory. js) in the root directory of your project. Unable to resolve module . js, module. js: Cannot find module 'babel-plugin-babel-preset-expo Any solution would be appreciated. // presets: ['babel-preset-expo'], }; So I expect it won't hit the cache and run everytime i build. yarn add --dev tailwindcss@3. If you're upgrading from a version of Expo Router that is older than v3, remove the plugins: ['expo-router/babel']. and some other to. Feb 25, 2024 · babel. npm i react-native-reanimated. cache(false) module. babelrc is okay to be in babel. npm i nativewind. js extension for the babel. cache (true) does exactly that. exports = function(api) { api. To enable Metro web support, make sure your project is using Expo SDK 46 or newer. json (jsconfig. js Oct 3, 2019 · How to debug babel. js in React Native enables caching of the Babel configuration function. It must be located at the root of your project, next to the package. In my expo-ejected react native project, with the intention of completely disabling a preset, i commented it from babel. js package-lock. babelrc file (or babel. expo folder, meaning runs are more idempotent — before this change, URL arguments like --port could leak into different Expo CLI processes. Expo init is creating a babel. This can be used to change the preset based on the environment. js This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Check babel docs if you need a different config. js looks like this Stack Overflow. Jun 6, 2019 · edit: I managed to fix this by clearing my expo cache so run: expo start -c. End product: Jan 10, 2020 · "The package babel-preset-expo extends @babel/preset-env on web and is used to configure your project for Unimodules. The plugin automatically rewrites the import statements so that only the modules you use are imported instead of the whole library. NOTE: This will be enabled by default in Babel 8. To fix it, move it into your babel. 62 Nov 20, 2023 · The api. It also allows you to setup a custom alias for directories, specific files, or even other npm modules. Dec 29, 2018 · Babel configuration for react-native Expo. js: {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"assets","path":"assets","contentType":"directory"},{"name":"App. This preset extends the default React Native preset ( metro-react-native-babel-preset) and adds support for decorators, tree-shaking web packages, and loading font icons with optional native dependencies if they're installed. cd simpleproject. I tried installing @babel/plugin-transform-typescript and @babel/preset-typescript separately but neither worked. A Babel plugin to add a new resolver for your modules when compiling your code using Babel. For me, a lot of things were not working : expo vector icons did not show up, sound loading did not properly work, custom font loading did not work. I'm using React and Firebase. babelrc would be useful if you want to run certain transformations / plugins on a subset of files /directories. yarn add nativewind. exports = { plugins: [ [ 'module:react-native-dotenv', { envName: 'APP_ENV', moduleName: '@env', path Mar 22, 2021 · I had the same problem, I just removed the '@' from my aliases and it seems working fine now. ts: None of these files exist: Feb 12, 2022 · Saved searches Use saved searches to filter your results more quickly May 24, 2019 · It looks like the installation of Expo CLI did not go correctly. Expo react native not using plugin defined in babel. Adding this version of babel, which I personally don't think you should need to add, may causes issues between these two. Using Expo with Next. Nov 30, 2018 · Unable to use babel-plugin-module-resolver with expo and react-native. It is also suggested to rename the babel. I did almost everything found on different threads regarding Sep 13, 2023 · The Babel config is used to transpile the API routes. expo-router/babel was merged in babel-preset-expo in SDK 50 (Expo Router v3). configuring babel. Asking for help, clarification, or responding to other answers. module. Our package. { "presets": ["babel-preset-myPreset", "@babel/preset-env"]} Feb 4, 2019 · Third, ensure your babel. cd into your app. Sep 1, 2023 · To use it in our Expo project we are going to use NativeWind (opens in a new tab) This generates your tailwind. I follow the following step to fix it. For example I've created new app with react-native-cli, installed decorators plugin and filled my babel. You can also modify this file to add additional Babel plugins or presets. Install the plugin. This can improve the performance of the build process. This is the recommended configuration as it provides the fastest setup and best DX experience, with zero configuration needed for Tailwind Intellisense within your IDE. 0 Jul 3, 2023 · Nothing about EAS, nothing about adding configuration in babel, nothing about metro. Right now, my project structure is. expo api assets components navigation node_modules screens . Create a test file for it and call it App. json) directories in your project that But if you have a babel. Node. Install the @babel/plugin-proposal-export-namespace-from Babel plugin and update the babel. I got around the problem by changing the config to a json file - babel. They can be used to add native modules that aren't included, by default, or to add any native code that needs to be configured further. – Taimoor Hamza. Expo webpack versus Expo Metro. cjs is what is applicable for Nodejs when using "type"="module Jul 16, 2019 · I just ran into the same issues when trying to setup environment variables in my Expo project. test. js is setup correctly. The first would be "babel": "^6. js filename in order to avoid conflicts with Expo and NextJS in our project; Install necessary babel dependencies. Using a Preset. cache(true) in babel. 1. In the merge request was made changes where was added import { ExpoConfig, getConfig, getNameFromConfig, ProjectConfig } from 'expo/config'; which I guess broke my build. cache(true) return { presets: [&quot;babel-preset-expo&quot; Sep 15, 2021 · App. Clearing a cache sometimes can help you work around issues related to stale or corrupt data and is often useful when troubleshooting and debugging. 7. I did so with: expo build:ios --clear-provisioning-profile To see the full list of commands that clear specific elements from the cache, run expo build:ios --help Dec 20, 2019 · babel. json, app. env. js: module. When the cache is enabled this way, config function will be called only once. Note that react-native-reanimated/plugin must be at the last plugin in the plugins array of the babel. Provide details and share your research! But avoid . I installed and edit my package. ~18% Smaller production bundles. js, and app/+html. Config plugin is a system for extending the app config and customizing the prebuild process for your app. js, metro. Add expo-router/babel plugin as the last item in the plugins array to your project's babel. Apr 26, 2018 · Starting the expo local server with exp start as needed for notification setup. Setup Tailwind CSS . Add this to your babel. js, clear the babel cache npx expo start --clear. js: Jun 14, 2020 · This seems to be an issue with Babel not recognizing typescript and converting it to javascript but I'm not sure how to fix it. exports = function (api) { File is a CommonJS module; it may be converted to an ES6 module. If such a file is found, it will be considered as the source of truth, and therefore it needs to define what Next. cache(true After changing your babel. config. js : babel. tsx","path":"App. Expo's Metro config has monorepo support for bun, npm, and yarn. cjs Jun 1, 2022 · also note that you should only do this in production by using the env config as you can see in that blog post. You switched accounts on another tab or window. In Expo Router, use the npx expo export --platform web command to export to the dist directory. js and adding Tailwind CSS as a PostCSS plugin. js extension as a test and includes it in the tests queue. See section below if you don't use autolinking. If that's the case, you can skip this step. npm install babel-plugin-inline-dotenv Include the plugin and the path to the . This will enable a set of experimental bundler improvements for Metro (the default bundler for React Native), the most notable of which is a faster JavaScript transformer. 0. Internally Expo CLI uses config plugins to generate and configure all the Dec 12, 2018 · By default, Babel will evaluate configuration each time it processes a new file. 0 and up. It allows you to manage navigation between screens in your app, allowing users to move seamlessly between different parts of your app's UI, using the same components on multiple platforms (Android, iOS, and web). I needed this configuration at the root of my directory babel. I'm setting up my build script in order to do server-side rendering on some routes of my web app. js needs as well, which is the next/babel preset. exports = { presets: ['module:metro-react-native-babel-preset'] }; Im currently using React Native 0. In SDK 50, that alias was removed and so dependency was as well. config There are a number of different caches associated with your project that can prevent your project from running as intended. Feb 14, 2019 · So Jest seems to be broken out of the box right now, when creating a React Native App with Expo. j I've already added to the babel config file. I have used babel-plugin-inline-dotenv for this. js is a React framework that provides simple page-based routing as well as server-side rendering. Aug 18, 2021 · Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. 0", it's incompatible because we use babel 7 internally. Reload to refresh your session. When bundling for a server environment, Expo's Metro config automatically Dec 21, 2021 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. js using expo/metro-config getDefaultConfig() not handling path aliases It seems that we still need to use module resolver in babel. The core feature is that it won't compile your modules to core. Indication is passed to the Babel caller via the isServer boolean. If the value is a string, it is treated as a runtime version number and passed as version to the @babel/plugin-transform-runtime configuration. cache(true); return { presets Oct 30, 2021 · The command finishes just fine, but the files created, namely babel. Does anyone know how to fix this? Relevant Files. eslintrc ), Prettier ( . js or . Defaults to true. js with the Expo SDK, we recommend using @expo/next-adapter library to handle the configuration. x, Babel has a concept of a "root" directory, which defaults to the current working directory. Nov 12, 2020 · Manually import the expo presets we needed, and then and add our own baseConfig; Set up a special babel config just for jest, without using the conventional babel. step 2. Reduced global side-effects of npx expo start to a single ngrok value in the . To write your first unit test, start by writing a simple test for App. I updated my app SDK 48 than 50. For project-wide configuration, Babel will automatically search for a babel. About; Dec 12, 2023 · Babel configuration changes in babel-preset-expo: we made a variety of small quality of life improvements in our Babel preset: we removed transforms that aren’t necessary when targeting Hermes, we no longer alias react-native-vector-icons to @expo/vector-icons in the Babel preset (it’s now done in the Metro resolver instead), and we now add In @expo/webpack-config, you could bundle your website for production using npx expo export:web. EXPO_PUBLIC_API_URL; From babel-plugin-transform-inline-environment-variables Using a Babel plugin to transform your environment variable references in your code is similar to how Expo environment variables work. > functions. npm i --dev tailwindcss@3. Expo Web uses webpack, so one possible setup is adding PostCSS to your webpack. Specific issues seem to be related to @expo/next-adapter/babel: '@babel/plugin-proposal-private-property-in-object' & '@babel/plugin-proposal-private-methods' should have same { loose: boolean } setting . You can generate sourcemaps with the --dump-sourcemap flag. Copy. Here is a minimal example: app. js file: Dec 14, 2021 · Fixes #2746 ## Changes Add `@babel/preset-typescript` to `peerDependencies` to fix error: `Cannot find module '@babel/preset-typescript'` ## Test code and steps to reproduce 1. I successfully compiled developement build with Expo CLI. Also on Feb 27, 2024 · After creating your expo project, you can install NativeWind and its dependencies by running the following commands in your project's directory: cd simpleproject. Dec 13, 2023 · To clarify a bit further, in SDK 49 babel-plugin-module-resolver used to alias react-native-vector-icons. Have installed first with yarn, then removed and installed with npm. Within a Babel config, if the preset is on npm, you can pass in the name of the preset and Babel will check that it's installed in node_modules already. js like this: return {. This has got to do with Babel settings. All Babel API options are allowed. js built-ins. package. Expo Router is a file-based router for React Native and web applications. 2. Aug 12, 2023 at 9:51. You don't have to manually configure Metro when using monorepos if you use the config from expo/metro-config. You can take a look at this file to learn about the presets included by Apr 3, 2022 · If using expo, use. Aug 11, 2022 · npx expo customize allows you to pass in filenames to generate without prompting: npx expo customize babel. API_URL; + const apiUrl = process. js. babel-preset-expo uses all of the caller inputs internally to optimize for a given platform, engine, and environment. Details: Oct 12, 2023 · You signed in with another tab or window. I've noticed that there are virtually no info from babel on incorrect configuration. Caveats to keep in mind about React Native Windows support: Windows support is new and experimental To start, you only need to define a . js, are missing some edits to get it working with next. babel-plugin-module-resolver. js as mentioned in SDK 49 and below installation step. web The app config ( app. to use module. React native project with expo-localization and i18n-js. 23. Enables compilation of TypeScript namespaces. tsx Aug 10, 2023 · Aug 11, 2023 at 2:25. /src/Config/Config from D:\project\src\api\mos-api\fetchMosDataAsync. json package. Dec 21, 2017 · Babel configuration for react-native Expo. Have deleted node_modules and package_lock. It is possible to optimize the build process performance by caching config function execution result. Com isso o VS Code Environment configuration. extension. Always use babel-preset-expo as the default Babel preset, this ensures the transformation is always compatible with Expo runtimes. expo install react-native-reanimated react-native-gesture-handler instead of. New in Babel 7. js file (because in my case what was in . Mar 3, 2022 · O compilador (Babel) — Aqui são feitas algumas configurações no arquivo babel. json file, or an equivalent one using the supported extensions, in this root directory. Jun 24, 2021 · So I am using minimal workflow with Typescript and I have this in babel. exports = { presets: ['module:metro-react-native-babel-preset'], Mar 5, 2023 · I am working on a React Native Expo project and trying to use Babel to transpile my code. May 31, 2020 · Describe the bug After starting a RN Typescript project from scratch with Expo, it seems like there is a babel config conflict with @storybook/react-native-server somehow. js means you can share some of your existing components and APIs across your mobile and web app. This would output a bundle to the web-build directory. js, babel. Adding Web support to Metro. js file and add your alias. Project-wide configuration. Feb 8, 2024 · React Native SDK 50 Upgrade Babel Config Problem. Other people have changed their config file to a commonjs file - babel. js, app. js babel. 1" info This module exists because "babel-plugin-module-resolver#find-babel-config" depends on it. js file. You can also add nativewind to your transpilation list through the @expo/webpack-config babel options. expo-cli depends on babel-runtime, so @expo/dev-tools should be able to find it as a peer dependency. I don't use expo in my project, but I use babel-preset-expo. 67 version. The latest version doesn't have a reference to @babel/plugin-proposal-export-namespace-from anymore. boolean, defaults to false. ESLint is generally configured for a single environment. Babel can be configured! Many other tools have similar configs: ESLint ( . This allows you to optimize the generated Babel runtime calls based on the version installed in your project. js to babel. To get smaller bundle size by excluding modules you don't use, you can use our optional babel plugin. log on the babel. This is added to the presets config option, which takes an array. Setup 1. Add the paths to all of your component files in your tailwind. e. Did you forget to add Reanimated Babel plugin in babel. json includes the following: Set up Babel config in your project - See instructions above for all React Native platforms; Run npx react-native autolink-windows to perform autolinking. Jan 18, 2024 · Babel configuration changes in babel-preset-expo: we made a variety of small quality of life improvements in our Babel preset: we removed transforms that aren't necessary when targeting Hermes, we no longer alias react-native-vector-icons to @expo/vector-icons in the Babel preset (it's now done in the Metro resolver instead), and we now add the New in Babel 7. If you previously wrote your website using the deprecated @expo/webpack-adapter, see the migration guide and comparison chart. However, if the option requires JavaScript, you may want to use a JavaScript configuration file. For example, the app. Make sure that react-native-reanimated/plugin is added to babel. I had a . 色々な記事があって混乱しますが以下のプラグインが一番シンプルにできました。 babel-plugin-dotenv-import Whether the transformer should use the @babel/transform/runtime plugin. 9. Hot Network Questions Proof related to factorization of a quadratic Nov 8, 2020 · Hi @hvaandres, it seems that you added 2 incompatible libraries. Each API route is bundled into a standalone file in the dist/_expo directory. json part if you use useFont. Mar 28, 2023 · => Found "find-babel-config#json5@0. 12. babel. This is my babel. config Babel. Steps to reproduce: `expo init' Choose tabs. You dont need to the app. Added in: v7. 5. babelrc file, make sure that it includes babel-preset-expo. Alternatively, users can use an explicit "configFile" value to Next. exports = {rest of your config} Aug 24, 2018 · I was running expo build:ios and needed to clear the cached provisioning profile. The env key is not needed anymore. My babel. tsx files are run in a Node. Just add the plugins key to your babel. json. I would search around the global node_modules folders to try to understand what is going on. Then modify your app config to enable the feature using the expo. js as follows: presets: ['module:metro-react-native-babel-preset'], plugins: ['@babel/plugin-proposal-decorators Jul 10, 2022 · It seems like there was a breaking change between react-native-reanimated 2. js too). gitignore App. A IDE (Visual Studio Code) — É preciso adicionar algumas opções no arquivo tsconfig. js is still running from cache after reload the app. babelrc and babel. It brings the best file-system routing concepts from the Oct 15, 2021 · EXPO_USE_EXOTIC=1 expo start. Run npx tailwindcss init to create a tailwind. > buildScripts // Some build scripts to replace some import paths. Mar 12, 2023 · Error: Failed to create a worklet. I'm building a react project and try to use Babel to simplified the import. Dec 21, 2023 · Saved searches Use saved searches to filter your results more quickly Apr 17, 2021 · Here is what worked for me in an Expo project. Run npm test Fails I googled Mar 4, 2011 · If the defaults do not cut it for your project, this outlines the available options for your Babel configuration and their respective default values, but you do not need to add them if you are using the default settings. The default babel configuration will both compile the Tailwind CSS styles and transform any component with the className attributed into a styled version. プラグインをインストール. add plugin babel. Jan 24, 2024 · I only tried dynamic font loading with useFont. 2. ow gb ah nl hc xp zv yd ek zx