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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(259.20000000000005, 30%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMR%3C/text%3E%3C/svg%3E)
When I try to run my project I always get this error:
I've tried everything I've seen online, and it still fails. I've executed "npm install" and a lot of npm commands I've seen in similar questions online. I've updated npm, node.js and visual studio.
Please help me I'm desperate.
Thank you in advance.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
The first debugging step is from the command line, cd to the ClientApp folder and:
Check if app builds
npm run build
Check if it starts ok
npm start
Fix any errors.
I get this error with "npm run build"
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(73.60000000000001, 90%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EZL%3C/text%3E%3C/svg%3E)
Hi @Manuel Rom ,
From the error message, it seems that the react-scripts.js module was not found, try to check the package.json file whether it contains the react-scripts dependency, if not try to add it.
If the package.json file contains the react-scripts dependency, try to search the node_modules folder, whether it contains the react-scripts.js file.
You can also try to remove the node_modules folder and the package-lock.json file, then, execute the npm-install command to reinstall the relates dependencies and package.
I create a new react application with the following package.json file, after install the relate dependencies and package, the application works well on my side:
The NPM script 'start' exited without indicating that the create-react-app server was listening for requests
Besides, for the above issue, I also checked some similar threads, it seems that if you have an & in your project's path you will run into this issue, at least on Windows it seems like. The part in the path after the & is interpreted as another command as per the error and everything breaks from there. So, you can check your project's path and remove it if it contains &.
Best regards,
Dillion
Hi, thank you for your answer. I have the react-script dependency and react-script.js folder in node-modules. I've tried your package.json file, run npm install and I still got the same error. The path in my project doesn't have any "&".
Sorry, I've tried your suggestion again and the error changed. Now I'm getting this screen:
Can you tell us your Asp.net core version, npm version, the VS version and the package.json file? It is better to create a simple sample, so that we can try to reproduce the problem and help you solve the problem.
.Net Core version: 2.1
npm version: 8.5.3
VS version: 2017 and 2019 (same errors)
package.json:
If I directly copy your package.json content in my application, it will also show the "Module not found error". But if I create a new project with the default configration, everything works well.
So, can you create a simple sample and tell us the detailed steps, so that we can try to reproduce the "The NPM script 'start' exited..." error.
You should delete the node_modules folder and run
npm install
Show us the output.
Hello, thank you for your answer.
I attach the log file with the output to this message.
Thank you in advance.