reactjs - React Build Error - Unexpected end of JSON input - Stack Overflow

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I'm completely at a loss. I have a React app I've been working on for some time and yesterday I found I was unable to build it. I keep getting the following error on 'npm run build': Creating an optimized production build... Failed to compile.

Unexpected end of JSON input

Steps I have taken:

• npm cache clean --force
• rm -rf node_modules package-lock.json
• rm -rf ~/.npm
• npm install
• checked all .json formatting
• tested the package.json file with node -e
• Used yarn to build (same error)

I have created a new React project and was able to build without errors. I have taken all the packages from package.json in my problem project, pasted them into a new project and was able to build without error.

I'm not sure what to do now other than completely rebuild my project piece by piece.

I'm completely at a loss. I have a React app I've been working on for some time and yesterday I found I was unable to build it. I keep getting the following error on 'npm run build': Creating an optimized production build... Failed to compile.

Unexpected end of JSON input

Steps I have taken:

• npm cache clean --force
• rm -rf node_modules package-lock.json
• rm -rf ~/.npm
• npm install
• checked all .json formatting
• tested the package.json file with node -e
• Used yarn to build (same error)

I have created a new React project and was able to build without errors. I have taken all the packages from package.json in my problem project, pasted them into a new project and was able to build without error.

I'm not sure what to do now other than completely rebuild my project piece by piece.

• reactjs
• npm

Share Improve this question Follow asked Nov 18, 2024 at 22:13 C PaynterC Paynter 9111 silver badge77 bronze badges 1

• I am not sure specifically what the problem is but I can tell you the approach I use to find the problem in these kind of situations. If you used git you can make a separate branch and start reverting commit by commit and seeing which commit changed the build from working to non working, it might seem like this will take a while but it will give you a deeper understanding in the end of the framework you are using. Good luck! – Lars Vonk Commented Nov 18, 2024 at 23:06

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3 Answers 3

Sorted by: Reset to default 17

I'm having the same issue for my react application since today and i think its a bug in the new NodeJs version. I fixed it by downgrading my version from 23.2.0 (newest at this time) to the LTS 22.11.0. Hope this will do the trick for you aswell.

As @Max mentioned it's a bug in latest nodejs.

We just changed the first line of the pipeline configuration (bitbucket-pipelines.yml) from image: node to image: node:lts and the problem was solved.

I setup my Docker file with node version:22-alpine3.19. Downgrading the NodeJS version works.

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