Cannot get final name for export 'BarChart4Icon' of __barrel_optimize__

[soymartinez]

Link to the code that reproduces this issue

https://github.com/omgismartinez/eye/blob/dev/config/site.ts

To Reproduce

1. Start the build of the application (next build)

Current vs. Expected behavior

It is only an object where it is specified which is the icon that makes reference to the route, the lucide-react library is used.

In development it works fine but when building it fails.

Verify canary release

• I verified that the issue exists in the latest Next.js canary release

Provide environment information

Operating System:
  Platform: win32
  Arch: x64
  Version: Windows 10 Home  
Binaries:
  Node: 21.2.0
  npm: N/A
  Yarn: N/A
  pnpm: 8.10.5
Relevant Packages:
  next: 14.0.3
  eslint-config-next: 14.0.3
  react: 18.2.0
  react-dom: 18.2.0
  typescript: 5.1.3
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

Not sure, SWC minifier (swcMinify: true), SWC transpilation

Additional context

1. I tried with version 13.5.x and now with version 14.0.3 but it keeps crashing,
2. I tried to change the file extension from .ts to .tsx but the error persists.
3. Change the different icon imports of lucide-react (BarChart4Icon, BarChart4)
4. The application is deployed in Vercel (error persists)

[frethereeks]

I found the solution (at least, for me). I had import {IoIosTrendingUp, IoIosCode, IoIosLaptop } from 'react-icons/io which works in development but fails on build.

After much effort, I inspected the folder and file structures of the react-icons library, then, found all the icons were also exported in the index page (also in the index.esm but that isn't useful) and imported the font/icons from it (the index.js page). Short story long, I modified the above import line to import {IoIosTrendingUp, IoIosCode, IoIosLaptop } from 'react-icons/io/index and that solved it for me.

Basically, add "index" after the specific library you are using e.g react-icons/md should be react-icons/md/index. That's all.

[soymartinez]

For the reference icons to work, it was necessary to specify the "use client" and this way everything worked for me.

[kdy1]

Is this issue still occurring?
I cannot access the repro

[github-actions]

This closed issue has been automatically locked because it had no new activity for 2 weeks. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.