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Discussion on: Unable to navigate to pages in react (MERN app) which is deployed on Heroku

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biomathcode profile image
Pratik sharma • • Edited 
if (process.env.NODE_ENV === 'production') {
  app.use(express.static('client/build'));
}
app.get('*', (request, response) => {
    response.sendFile(path.join(__dirname, 'client/build', 'index.html'));
});
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did you add this in your server ??

you can look here at the steps to do the same

github.com/accimeesterlin/mern-sta...

Hope it helps

Chill!!!

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deepikasharma5 profile image
Deepika Sharma •

Yes when I add that I am getting the error as this.state.dates.map is not a function. (A mapping error)

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deepikasharma5 profile image
Deepika Sharma •

If you can , can you check whether my frontend mapping is correct? Because if I add the above code it is showing mapping error. But the code is completely working on local server.

And without the above code the home page and the mapping inside it are working fine. Only the navigation is not working.
(Actually I referred this person's YouTube video and deployed)