I realize this question has been asked multiple times but nothing has worked for me...
I'm trying to create a static build of a create-react-app project but I'm getting the following errors:
Uncaught SyntaxError: Unexpected token < 1.ca81c833.chunk.js:1
Uncaught SyntaxError: Unexpected token < main.7ced8661.chunk.js:1
Due to these files being minified, I'm not sure where to begin in debugging them.
Per other SO responses, here are some things I've tried:
//Original index.html file, which gets included in the built file:
<script type="text/babel" src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.24/browser.min.js"></script>
//package.json
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
//.babelrc file
{
"presets": ["react", "es2015", "stage-1"]
}
Not sure if this is relevant, but I have this on my express server, which I believe is standard:
if (process.env.NODE_ENV === "production") {
app.use(express.static('client/built'));
app.get("*", (req, res) => {
res.sendFile(require('path')
.resolve(__dirname, 'client', 'build', 'index.html'));
})
}
Assuming it's actually a JSX issue, the whole thing is very confusing - shouldn't create-react-app be handling JSX automatically?
UPDATE: I just posted this question but already have a relevant update. I'm able to serve the page statically through pm2 by running pm2 serve build so I think the issue may be with my server configuration.
Thanks this helped me a lot. Just wanting to add to this with an example from a Create-React-App project that had the same solution: I received the same error after deploying to heroku.
Uncaught SyntaxError: Unexpected token < after serve -s build
For me the problem was in the packages.json file. The "homepage" parameter i gave was incorrect. Changing this to the correct heroku URL solved the issue.
"homepage": "https://myapp.herokuapp.com/"
Hope this addition is helpful.
I ended up finding an answer here: https://github.com/facebook/create-react-app/issues/1812
I trimmed down the full solution from above, but I changed:
app.use(express.static('client/build'));
app.get("*", (req, res) => {
res.sendFile(require('path')
.resolve(__dirname, 'client', 'build', 'index.html'));
})
to:
const root = require('path').join(__dirname, 'client', 'build')
app.use(express.static(root));
app.get("*", (req, res) => {
res.sendFile('index.html', { root });
})
It's definitely a bit strange to me that the first block didn't work. I assume it has something to do with the relative links in my React project since I do get an index.html file delivered to browser, despite getting the error. Maybe a completely static file would work with the first block, but I'd be interested to know if that's accurate.
just remove
"homepage": "your app url "
from package.json to fix it