Uncaught syntaxerror unexpected token vercel react bundle. I read some topics on stackoverflow too. json: { "functions Uncaught SyntaxError: Unexpected token "<" 2. I don't know what's wrong and what should i do. html$ - [L] RewriteCond %{REQUEST_FILENAME} Webpack/Babel/React - "Uncaught SyntaxError: Unexpected token :" 3. <FaFacebook />) within a js file. Thing is, Uncaught SyntaxError: Unexpected token < using angular 4 build run in browser. I just copied a working react-bootstrap snippet in a js file but it's not working for me, I'm having Uncaught Hi, @haothien1103 I guess the issue might be that you're trying to serve the frontend JavaScript files (React app) as backend Node. -index. I have react working and Unity working however it seems like there is something up with the "Bridging system" between the two. Commenting out code to Uncaught SyntaxError: Unexpected token '<' Summary I am using Next 14 and created a sample create next app. The issue was with how I located the js and css files in the index. json file. Here i my simple component: import React from "react"; import Unity, { UnityContext } from "react-unity-webgl"; const unityContext = new UnityContext({ loaderUrl: Uncaught SyntaxError: Unexpected token '<' #178. js -node_modules -server -config -server. ts Ask questions, find answers and collaborate at work with Stack Overflow for Teams. 1. I needed to add 'react' to babel Those who are using create-react-app and trying to fetch local json files. 1:3000. createElement syntax instead of JSX tags (check Hello! Every time I attempt to render my reactapp, the same error "Uncaught SyntexError: unexpected token '<' " appears despite changing nothing in If you have been working with ReactJS, you might have encountered the error message “Uncaught SyntaxError: Unexpected token <“. Stack Overflow. How to Integrate React Epub Reader with next js. 0. js, uncaught SyntaxError: unexpected token < Ask Question Asked 8 years, 8 months ago. js:1 which is generated by the react build. Would appreciate any suggestions. Unexpected token "<" in this case comes from a nested path. Here is the This bug happens to us at random when hovering over some Next. Some anti Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Uncaught SyntaxError: Unexpected token '<' in React app. Remove the <script> tag in public/index. React. Related. js, vendor. globalEval (jquery. My code is throwing syntax ReactJS: "Uncaught SyntaxError: Unexpected token <" Related. Ask Question Asked 3 years, 1 month ago. min. Raw(Model. ReactJS SyntaxError: Unexpected token. VM4135:1 Uncaught SyntaxError: Unexpected token o in JSON at position 1 at JSON. parse at patchIncorrectLockfile (< project vercel / next. Summary When I run the command dev or build or start, I see this error: SyntaxError: Unexpected token < in JSON at position 15396 at JSON. 46. This was as per the docs import { Stack Overflow | The World’s Largest Online Community for Developers Uncaught SyntaxError: Unexpected token < in the file main. React SyntaxError: Unexpected token '<' Hot Network Questions Is there a specific named fallacy for bringing 'Uncaught SyntaxError: Unexpected token <' I believe it is my 'catch all' route in my express server which is serving up index. As in create-react-app, webpack-dev-server is used to handle the request and for every request it serves the index. About; Products OverflowAI; Uncaught SyntaxError: Unexpected token < with React. chunk. 0:8000 it is working fine. Transpile npm module in Next. Viewed 7k times 3 . Other html I put in the template file gets rendered except the reactjs bundle. 6 I am now using React Jest to test code. gunicorn --bind 0. config. js:1 Uncaught SyntaxError: Unexpected token < An examination of the source reveals a copy of my index. Uncaught SyntaxError: Unexpected token '<' #533. js:1 I'm sure it means backend returns HTML page to them instead of JS code. Here is the HTML page of one of my React apps. Ask Question Asked 7 years, 9 months ago. inspectorsherlock asked If anyone understands what the solution is for this error, please let me know. I think that was either a bug or just the app being rebuilt because of such a change busted some broken cache and things started working. app. 6396d38a. createClass(. Node 14. How to programmatically navigate using I have included swagger in express and deployed on vercel. This was ReactJS: "Uncaught SyntaxError: Unexpected token <" 1090. Thing is, Uncaught SyntaxError: Unexpected token < This was not appearing before and it started appearing yesterda Skip to main content. For import, Uncaught SyntaxError: Unexpected tokenFor JSX, Uncaught SyntaxError: Unexpected token <Is it because I did not install BABEL or ES6. Parsing error: Unexpected keyword 'export' Hot Network Questions What is the term for a type of binding that has a contiguous picture across multiple books on their spines? Uncaught SyntaxError: Unexpected token < I've seen that there are several posts of this error, but I was not albe to fix the issue following those links. My folder structure is as follows: My app was working perfectly fine just before i installed simple-react-bootstrap After installing it is now showing blank page and in console it's showing error: Uncaught SyntaxError: Unexpected I have a simple middleware setup that checks if the user is logged in using a boolean from the zustand store, and redirect the user to the login page accordingly. react-router 4 does not update url with query parameters. I believe Webpack 2 handles them out-of-the-box, but from your config, it seems like you are using Webpack 1, so you need to install a plugin for that:. 2. SyntaxError: Unexpected token '<' Hot Network Questions In John 1:1-2, does "in the beginning" mean that the Son already existed or that he began to exist with God? One possible fix for this issue in Webpack version 5. I am developping a react application, using Netlify to build & deploy the app automatically on commit. NextJS React - WebpackError: window is not defined. react js unexpected token export on export{default as Cards} 0. On launch ReactJS: "Uncaught SyntaxError: Unexpected token <" 0. However, you haven't provided enough context for What file and line number are the errors reported on? How are you launching the app? If you're using the dev server, have you confirmed that the URL in the browser's address bar points to it? React: Uncaught SyntaxError: Unexpected token < in JSON at position 0. Learning ReactJS: Uncaught SyntaxError: Unexpected token import. You switched accounts on another tab or window. Reload to refresh your session. I am setting up my first project, when I try to run the webpack-dev-server my code does not compile! Update Answer below is correct. worker. then storing them in local storage, but since there is nothing in local storage since this is a fresh boot, it's looking for the token that isn't there? SyntaxError: Unexpected token 'export' That's the function I'm trying to import: Unexpected token 'export' in react nextjs project? 11. However the URL is totally fine and if copied and pasted in a new tab it will work perfectly. Json. js are you using? v14. Her is my html: <!DOCTYPE html Reactjs - Uncaught SyntaxError: Unexpected token < Ask Question Asked 5 years, 5 months ago. not exactly sure Here is a bit of my server file. when i am using python manage. e React. Uncaught SyntaxError: Unexpected token & when rendering the client after having rendered correctly the server. but, when i am using . Errors were raised in Chrome to import and JSX. py runserver 0. json file is for a frontend React app with a nodejs backend) I have a react website which I am hosting inside a Docker container that is running Nginx, which I have running on Port 3000. Why was this issue marked with the please add a complete reproduction label?. js canary release Provide environment information Operating System: Platform: win32 Arch: x64 Version: Windows 10 Pro Binaries: Node: 14. A missing closing quote of a string literal. Everything works fine, except I have a Twitter authentication call, which uses a callback. Modified 7 years ago. To solve this, you need to eject the app and modify the webpack-dev-server configuration file. What version of Next. Answered by jeffreylanters. Any idea? I asked my brother about his chrome version, his device, his setup, the steps to reproduce but no luck. How to get JSON object from Razor Model object in javascript We cannot recreate the issue with the provided information. Why am ReactJS SyntaxError: Unexpected token - ReactDOM. I am just trying to make a simple example to learn. SerializeObject(ViewModelObject); Next time, will save my time. When I deploy without changing any default settings, I will get this "Uncaught SyntaxError: Unexpected token <" error and nothing shows up on the screen. The React app files are static and should be served as such, not interpreted as server-side JavaScript. React/Node Uncaught SyntaxError: Unexpected token < Ask Question Asked 5 years, 11 months ago. Find my firebase. To be able to investigate, we need access to a reproduction to identify what triggered the issue. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; ReactJS: "Uncaught SyntaxError: Unexpected token <" 1483 What are these three dots in React doing? 532 Uncaught SyntaxError: Unexpected token : 3 Uncaught SyntaxError: Unexpected token < with React. Uncaught SyntaxError: Unexpected token < angular. npm install --save-dev babel-plugin-transform-es2015-modules-commonjs I was able to arrive to this answer thanks to the comments especially @DrewReese. However the problem is when i go to localhost:8000 I get Uncaught SyntaxError: Unexpected token < exception when I open the console in chrome devtools. I'm working on a react project and trying to display a dialog with react-bootstrap. data - check the data is corrupted by unwanted whitespace or not ECMAScript modules aren't something that any browser supports natively yet. getinitialState() should be getInitialState(). js:1 Here's my index. 16. js I am new to react. I'm trying to work React into my HTML page which I'm trying to create dynamic cards from bootstrap, but I keep getting Here's what I have so far ReactJS: "Uncaught SyntaxError: Unexpected token <" (13 answers) Closed 8 years ago. VM505:2 Uncaught SyntaxError: Unexpected token < at Function. parse error: SyntaxError: Unexpected token ' in JSON at position 1. This is my code. httpData (jquery. htaccess file : RewriteEngine On RewriteBase / RewriteRule ^index\. Any app I've created with vanilla JS I can upload along with the HTML and CSS files and it works fine. Be sure to remove defition of global from vite. I've Webpack/Babel/React - "Uncaught SyntaxError: Unexpected token :" 4. Here is the directory of my app: E-study -client -app -components -all the libraries are here. I am posting this in a hope help others incase if they reach this far and still have not found a fix. That said, I've read up on several similar-seeming bugs on here and on github and I can't find anything I have set it up just like in the tutorial. parse(data) data - check the data is undefined or not. htaccess: <IfModule mod_rewrite. This is the configuration file Vercel uses to understand how to handle your project. 5 npm: N/A Yarn: N/A pnpm: N/A Rel To replicate the error, all you have to do is create a new react app using create-react-app, install stockfish and add the above line. 5 + React ) it was happen on pages with 2nd or more nested level of pages. Uncaught SyntaxError: Unexpected token '<' Ask Question Asked 4 years, 1 month ago. Stuck on an issue? Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. React Uncaught SyntaxError: Unexpected token. x. Why? Who knows. My first time using react, so apologies if I'm doing something obvious and incredibly wrong. Firebase deployed react app not working. What can be the reason ? (react uncaught syntaxerror: unexpected token <) Fix the common Uncaught SyntaxError: Unexpected Token < in React with our step-by-step guide. Provide details and share your research! But avoid . render with WebPack 4, Babel 7. js, main. I am facing issues similar to the ones in this post: [Common Issue] Why do I see “Uncaught SyntaxError: Unexpected token <” errors? How can I use chunking or versioning for my assets at Netlify? Welp, I still cannot manage to find how to fix the issue. Objectlist)) Code behind: string Objectlist = Newtonsoft. 0 Netlify deployment - Failed to fetch cache. g. This is the option that you can do: React (router?) Uncaught SyntaxError: Unexpected token < 2. Swagger is working fine locaally but giving Uncaught SyntaxError: Unexpected token '<' in browser console when i deploy app to vercel. I have a problem with react app. html folder. I've met the same problem. jsObj = JSON. However, when I npm run build and the firebase deploy the app, the app is not running and is throwing the error: Uncaught SyntaxError: Unexpected token '<'. 0:8000 settings. For some reason react was able to locate the files with out / prepend to source location. . js:30 Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0 Project Structure: |---static Unexpected token < . Modified 6 years I'm trying out the code from egghead. This error typically occurs when there Uncaught SyntaxError: Unexpected token "<" 2. render. js:1. window. html entry point. Components that are in the nested are late to read. js Public. Viewed 19k times 7 . means JSON parsing failed because you somehow get HTML while expecting JSON. ). Uncaught SyntaxError: Unexpected token '<' (and the page does not load): Does anyone know how to fix it? The version of the main file is correct and checked nginx config and it is pointing to the build folder index. Do the one change in your snippet codes which it is given in above section. ts in vue project). You signed in with another tab or window. Given below is my configuration for swagger Step 1: In the root of your project, you need a vercel. However, I tried to make a small app using only index. ReactJS - JSON. fa04b6. parse I believe the issue is that I am pulling a web token and the user data at once. js:1 Uncaught SyntaxError: Unexpected token "<" main. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. So you are getting . Try Teams for free Explore Teams I am running an AJAX call in my MooTools script, this works fine in Firefox but in Chrome I am getting a Uncaught SyntaxError: Unexpected token : error, I cannot determine why. Nextjs v14: Unexpected token < in JSON at position 15396. You signed out in another tab or window. SyntaxError: Unexpected token < in JSON at position 0. js" is a link, when I click, It shows the below file and location, it's not You are using JSX syntax (e. I am able to build and run the app locally without any fail. ES5 use getInitialState() to initialize the state variables i. js Links and prefetching fails throwing this SyntaxError. I am trying to deploy my django-react in azure vm. Step 2: Update the vercel. c> RewriteEngine On RewriteBase / RewriteRule ^index\. Modified 2 years ago. If a component is single, and not importing anything else, "npm test" runs smoothly. 2361. For some reasons I am getting Uncaught SyntaxError: When I run vercel dev (locally- localhost:3000/api/v1), I see documentation as expected: However when I push my code to a branch which triggers a vercel build , I see the following: Checking the console, I see: "jquery Uncaught SyntaxError: Unexpected token '&'" spent several hours, actually, solution is simple: var json = @Html. Correct minor spelling mistake here. In most default configurations, this should be OK but your web pack configuration might have been changed to only process In order to have a bare minimum setup with react (with no compilation step), you need either to use React. Uncaught SyntaxError: Unexpected token export. Load 7 more related questions Show fewer related questions I am new to React and Webpack. Modified 8 years, 8 months ago. SO, I basically solved all the problems by adding / ahead of all source in the index. html. Closed memcpy1337 opened this issue Apr 16, 2021 · 2 comments Closed Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Uncaught SyntaxError: Unexpected token < I've done few researches on this topic, people who had a similar problem solved it by adding property type="text/jsx" or type="text/babel" to their script tag, but that doesn't work in my case. Now I want to test multiple components together, and I immedia Uncaught SyntaxError: Unexpected token '<' while deploying create react app to firebase hosting 4 Getting blank page when React App is deployed and hosted by firebase ReactJS Module build failed: SyntaxError: Unexpected token - ReactDOM. Viewed 11k times 1a4953075f808eb6a767. I am having problem with react setup via CDN. Uncaught SyntaxError: Unexpected token < This is my . 6. js files bundle. However, any apps where the JS file contains React does not load in the browser. Ask Question Asked 7 years ago. JsonConvert. Seeing solution mention "I change all the pages and components and layouts to arrow functions and it resolve the issue. js:49) at Function. 0 I encountered this issue, and fixed it following this answer. 1 What browser are you using? Chrome What operating system are you using? macOs How are you deploying your ap Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Alternatively, look at using React without JSX. Uncaught SyntaxError: Unexpected token < in react-router with trailing slash in the end. html -controllers. Fetch in react always return (Unexpected token R in JSON at position 0) 1. Modified 3 months ago. I then have an instance of Nginx on my host machine, which I have a reverse proxy pointing to 127. html page. html$ - [L Verify canary release I verified that the issue exists in Next. I was encountering a similar issue but fixed by adding below line to the top of my entry file (which was main. html and app. 15. When I navigate to /api/revalidate/?pagePath=pageUrl&secret=REVALIDATE_TOKEN, with correct params , I get errors you see on image . In my case it is ok with next . I used to write a react app by using create-react-app and there was no problem. js. Modified 4 years, 8 months ago. js:152) at In my case ( Webpack v. Ask Question Asked 8 years, 5 months ago. js:259:29) "at layout. They said that maybe it's all about cache problem. js files, leading to the SyntaxError: Unexpected token '<'. Uncaught SyntaxError: Unexpected token '<' bundle. 9345ebBe. Viewed 13k times 9 . global ||= window; Make sure to add that before any imports. React app works fine when running with react-scripts start but gets a "Unexpected SyntaxError: Unexpected Token: <" when built -1 'npm run build' gives me uncaught syntax error: Unexpected token '<' when I try to render the html file for my single page react app create-react-app Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0 0 Fetch API calls fail after implementing catch-all express routing solution: Unexpected token < in JSON at position 0 Its complaining about all 3 . js And I Uncaught SyntaxError: Unexpected token '<' React Hot Network Questions Precision amplitude measurement of "high" speed load cell signal Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company If you get Uncaught SyntaxError: Unexpected token u in JSON at position 0 then you could do the following quick checks:. 3. Asking for help, clarification, or responding to other answers. Instead, when I open up the console I receive this message, "Uncaught SyntaxError: Unexpected token '<' ". 564. React Router - Cannot read property 'history' of undefined. Please add a reproduction in order for us to be able to investigate. However, when I refresh the page, the website works perfectly fine. Viewed 46k times 26 . I am trying to make a React project without Node and I am calling a JS file from a HTML file. html How do I resolve SyntaxError: Unexpected token 'export' in react nextjs project? [duplicate] Ask Question Asked 2 years, 4 months ago. Viewed 962 times -2 . js SyntaxError: Unexpected token < 1. A <script /> tag that points to an HTML file instead of a JS file. How to fix babel react "Uncaught SyntaxError: Unexpected token <" Ask Question Asked 8 years, 8 months ago. This has been asked before (for example ) but I can't find anything that applies to my situation. Understanding unique keys for array children in React. Unexpected token - React babel. json file with the following content: (this vercel. Hello. js are you using? 11 What version of Node. " is weird. data - check the data is a valid JSON string or not. 5. io and I keep getting the following error: Uncaught SyntaxError: Unexpected token import I have loaded babel twice now and have followed along the lesson as described, but it just Uncaught SyntaxError: Unexpected token < reactjs react-pdf. Modified 2 years, 4 months ago. tools. html When I build and deploy a create-react-app to Netlify I don’t get any errors, but the result is a blank page. Basically the API is not available during build time IF you did not push the API before. wsgi When you run npm run build, Create React App will substitute %PUBLIC_URL% with a correct absolute path so your project works even if you use client-side routing or host it at a non-root URL. 0. tsx. Identify and resolve I get this error intermittently: Uncaught SyntaxError: Invalid or unexpected token (at layout. This is my the public Netlify page: https: "Uncaught SyntaxError: Unexpected token <" Drilling into the code here: The "Uncaught SyntaxError: Unexpected token" exception occurs for multiple reasons: A missing or extra bracket, parenthesis or comma in your code. It collects links to all the places you might be looking at while hunting down a tough bug. I'm guessing you were trying to do something like what is mentioned in this question: ReactJS: "Uncaught SyntaxError: Unexpected token <". nmknh mtsy xkizsxnj bypcz tssv ocout lvxg eriu ajgcsj fcxgk jfa dxlhti sqptswj xggi atx