[Bug] We encountered an error while trying to load your site's gatsby-config

[lbittner-pdftron]

Hi there!

Since upgrading to Gatsby 2.13 my windows users have been getting the error mentioned in the title. I actually opened an issue about this before here but closed it because I could not reproduce on a fresh repo.

I decided to try this again and managed to find the bug this time. Its coming from test-require-error.js in this code:

const regex = new RegExp(`Error:\\s(\\S+\\s)?[Cc]annot find module\\s.${moduleName.replace(/[-/\\^$*+?.()|[\]{}]/g, `\\$&`)}`);
const firstLine = err.toString().split(`\n`)[0];

The error messaged generated on some windows machines contains two backslashes instead of one, like this:

 Error: Cannot find module 'D:\\PDFTronWebsite\\pdftron-dev-site\\node_modules\\gatsby-plugin-layout\\gatsby-config'

but the regex is only testing for a single backslash, causing a false negative.

I managed to fix it by changing firstLine to this:

const firstLine = err.toString().replace(/\\\\/g, '\\').split(`\n`)[0];

I know its a bit gross but I didn't want to mess with the giant regex above. There is probably a better way to fix this, but just wanted to let you guys know.

Thanks!

[gatsbot]

Hiya!

This issue has gone quiet. Spooky quiet. 👻

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[gatsbot]

Hey again!

It’s been 30 days since anything happened on this issue, so our friendly neighborhood robot (that’s me!) is going to close it.

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As a friendly reminder: the best way to see this issue, or any other, fixed is to open a Pull Request. Check out gatsby.dev/contribute for more information about opening PRs, triaging issues, and contributing!

Thanks again for being part of the Gatsby community!