React training project ends up with an error "Build Result Error: There was a problem with a file build result.

Question

React training project ends up with an error "Build Result Error: There was a problem with a file build result.

PAL AKHILESH SINGH 25

The app cannot be viewed in the browser. Here is the terminal output:

[18:37:56] [snowpack] Error: HTML fragment found!

HTML fragments (files not starting with "<!doctype html>") are not transformed like full HTML pages.

Add the missing doctype, or set buildOptions.htmlFragments=true if HTML fragments are expected.

[18:37:56] [snowpack] [500] /

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SiddeshTN 5,345 Reputation points Microsoft External Staff

2024-07-01T05:29:59.1366667+00:00

Hi PAL AKHILESH SINGH,

Welcome to the Microsoft Q&A forum.

Thank you for bringing this issue to our attention. We will update you as soon as possible.
PAL AKHILESH SINGH 25 Reputation points

2024-07-01T10:12:23.2866667+00:00

Thank you for the help. Turned out I forgot to save the file 🫠. I thought the code should run as it looks on the editor. My bad. Realized it when I went to the folder and saw the index files weren't there. There was another error after I saved the files which read:

`ENOENT: no such file or directory, open 'D:\Projects\mslearn-react\code\0-starter\node_modules\.cache\snowpack\build\react-dom@17.0.2\react-dom.js'

which went away after npm audit fix --force (thanks copilot, I guess). What does it mean? Thanks in advance.

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SiddeshTN 5,345 Reputation points Microsoft External Staff

2024-07-01T05:29:59.1366667+00:00

Hi PAL AKHILESH SINGH,

Welcome to the Microsoft Q&A forum.

Thank you for bringing this issue to our attention. We will update you as soon as possible.
PAL AKHILESH SINGH 25 Reputation points

2024-07-01T10:12:23.2866667+00:00

Thank you for the help. Turned out I forgot to save the file 🫠. I thought the code should run as it looks on the editor. My bad. Realized it when I went to the folder and saw the index files weren't there. There was another error after I saved the files which read:

`ENOENT: no such file or directory, open 'D:\Projects\mslearn-react\code\0-starter\node_modules\.cache\snowpack\build\react-dom@17.0.2\react-dom.js'

which went away after npm audit fix --force (thanks copilot, I guess). What does it mean? Thanks in advance.

Answer 1

SiddeshTN 5,345 Microsoft External Staff

Hi PAL AKHILESH SINGH,

Thank you for reaching out to us on Microsoft Q&A forum.

The error message you are encountering suggests that Snowpack is interpreting your HTML file as a fragment due to the absence of the <!DOCTYPE html> declaration at the beginning. To resolve this issue, ensure that your index.html file includes the <!DOCTYPE html> declaration at the very start.

To fix this issue, make sure your index.html file starts with the <!DOCTYPE html> declaration, like this:

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Recipes</title>
</head>
<body>
    <div id="app"></div>
    <script type="module" src="/dist/index.js"></script>
</body>
</html>

Steps to Resolve the Issue

1.Open the index.html file in your public folder and ensure the first line
is <!DOCTYPE html>.
2.Make sure that index.html is in the public folder and index.jsx is in the src folder.
3.Make sure your package.json file includes the correct scripts for starting Snowpack, which should look something like this:

"scripts": {
    "start": "snowpack dev",
    "build": "snowpack build"
}

4.To start the development server, open the integrated terminal in Visual Studio Code by selecting View > Terminal or pressing Ctrl + \ (on Mac, `Cmd + \`), and run the command npm start.
5.Manually open your browser and navigate to http://localhost:8080 if it does not open automatically.

If you continue to face issues, please let us know in the comments. We are here to help.

If you find this information helpful, please acknowledge by clicking the "Upvote" buttons on the post.

SiddeshTN 5,345 Reputation points Microsoft External Staff

2024-07-02T05:03:28.47+00:00

Hi PAL AKHILESH SINGH,
We are pleased to hear that your issue is resolved.

The error you are encountering occurs after saving the files correctly,
the error ENOENT: no such file or directory, open 'D:\Projects\mslearn-react\code\0-starter\node_modules\.cache\snowpack\build\react-dom@17.0.2\react-dom.js' appeared. This error indicates that Snowpack couldn't find the react-dom.js file. Running npm audit fix --force resolved the issue by fixing dependency-related problems, ensuring all necessary files were correctly installed and available.

If you continue to face issues, please let us know in the comments. We are here to help.If you find this information helpful, please acknowledge by clicking the
"Accept answer" & "Upvote" buttons on the post.
SiddeshTN 5,345 Reputation points Microsoft External Staff

2024-07-03T07:40:04.2333333+00:00

Hi PAL AKHILESH SINGH,

Hope you are doing well.

I wanted to check if you had the opportunity to review the information which was provided in in my previous posted answer.

Please feel free to contact us if you have any more quires.

If you found the information helpful, please acknowledge by clicking the "Accept Answer" and "Upvote" buttons.

Thank you.
SiddeshTN 5,345 Reputation points Microsoft External Staff

2024-07-04T07:42:56.8133333+00:00

Hi PAL AKHILESH SINGH,

We're delighted to hear that your issue has been resolved. If you encounter any further challenges, please don't hesitate to get in touch with us, and we'll be more than happy to provide additional assistance.

Thank you.

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React training project ends up with an error "Build Result Error: There was a problem with a file build result.

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