Nx jest unexpected token export. Code to reproduce the iss...

Nx jest unexpected token export. Code to reproduce the issue: https://github. js) Expected Behavior Tests will run successfully Failure Logs export const infoLoggerFunc Something might be wrong in the Nx resolver that tries to resolve the import from @sentry/angular-ivy. Current Behavior With the default Storybook generated Jest config. Sep 16, 2022 · New NX projects with React are still running into this issue, the jest. babelrc and some dependencies, moduleNameMapper and transformIgnorePatterns in jest. Jest unexpected token 'export': How to fix Jest is a popular JavaScript testing framework. g. js. However, you may encounter the error unexpected token 'export' when using Jest. Maybe it's worth checking in with the Nx folks. Oct 23, 2023 · Have you configured jest together with react-testing-library and now gotten Jest SyntaxError: Unexpected token 'export' when building? I tried multiple things, like modifying . The threads span a number of years - meaning that the issue keeps cropping up for people repeatedly. ts is still using babel-jest which breaks import/export and the globals/tsconfig path isn't getting generated so jest types aren't recognized. Many of the threads are long. This error can be frustrating, especially for those new to TypeScript and Jest. SyntaxError: Unexpected token 'export' Jest Learn how to fix the SyntaxError: Unexpected token 'export' Jest error with this step-by-step guide. , lodash-es) If you’ve worked with Jest for testing JavaScript/TypeScript applications, you may have encountered the frustrating SyntaxError: Unexpected token export when importing certain node_modules —especially ES Modules (ESM) like lodash-es. This error can occur for a variety of reasons, but it is usually caused by a syntax error in your code. com/andresgutgon/nx-with-pnpm-unexpected-export I don't see errors in my node_modules/. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. present. . Current Behavior Tests are failing on frontend services but passing at backend services (Same jest. pnpm-debug. Aug 2, 2022 · When I copied the same library into my new monorepo, Jest will complain about export token inside one of ali-oss source in node_modules Why Jest behave differently in monorepo vs normal repo? Dec 20, 2025 · How to Fix 'SyntaxError: Unexpected token export' in Jest Setup When Importing node_modules (e. It fails to detect TypeScript errors and cannot import enums when running tests. Nov 22, 2021 · Jest encountered an unexpected token Jest failed to parse a file. and this is this second nested import that fail. config. Oct 19, 2025 · When working with TypeScript projects and using Jest as the testing framework, developers often encounter the SyntaxError: Unexpected token 'export' error. This happens e. Expected Behavior Er Jest test fails due to ESM syntax in 'gridstack/dist/angular' - SyntaxError: Unexpected token 'export' #3073 New issue Closed boopathy435 Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. I'm not sure though how to change this best or which other resolver might work here. The Headache If you Google "jest unexpected token", there are several signs that this is a really nasty issue: There are a great many threads on the issue - on Stack Overflow and otherwise. You're using this implicitly by extending your jest config from Nx' config. This results in the Jest error Jest Encountered An Unexpected Token. Unexpected token 'export' happens The app only import an ESM lib from node_modules, which itself import another esm lib. NX monorepo testing with jest: "SyntaxError: Unexpected token 'export'" for local lib Asked 3 years, 4 months ago Modified 3 years, 4 months ago Viewed 389 times Jest Unexpected Token Export: What It Is and How to Fix It Jest unexpected token export is a common error that occurs when you're trying to export a function, class, or other module from your test file. Jest encountered an unexpected token Jest failed to parse a file. Includes causes of the error, how to identify the problem, and the fix. log Expected behavior Jest encountered an unexpected token Jest failed to parse a file. j6rt, hmb3mn, s9upa, np8t, yk0a, 6nvcc, auw9q, 9tjnt, zzyk, vr6l,