Any Gatsby project errors with "cannot read property 'resolved' of undefined"

With the latest 7.13 release. If I downgrade to 7.12.17 it works again.

@KyleAMathews

Hey @KyleAMathews! We really appreciate you taking the time to report an issue. The collaborators on this project attempt to help as many people as possible, but we're a limited number of volunteers, so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack community that typically always has someone willing to help. You can sign-up here for an invite."

Can you share the complete stack trace or a reproduction repo?

@KyleAMathews

Hi @KyleAMathews! This issue is missing some important information we'll need to be able to reproduce this issue.

Please understand that we receive a high volume of issues, and there are only a limited number of volunteers that help maintain this project. The easier it is for us to decipher an issue with the info provided, the more likely it is that we'll be able to help.

Please make sure you have the following information documented in this ticket:

Your Babel configuration (typically from .babelrc or babel.config.js)
The current (incorrect) behavior you're seeing
The behavior you expect
A short, self-contained example

Please provide either a link to the problem via the repl, or if the repl is insufficient, a new and minimal repository with instructions on how to build/replicate the issue.

I am seeing the same, with a minimal gatsby site (created by npm init gatsby -y).

The logs I'm getting from gatsby develop are:

 ERROR #98123  WEBPACK

Generating development SSR bundle failed

Cannot read property 'resolved' of undefined

File: .cache/ssr-develop-static-entry.js

not finished Building development bundle - 0.301s

I was able to unblock myself by adding resolutions to my package.json as well:

  "resolutions": {
    "@babel/core": "7.12.0"
  }

Will try to spin up a minimal reproduction now...

@nicolo-ribaudo

Here's a minimal site with the latest packages installed where I'm seeing the error: https://codesandbox.io/s/github/gillkyle/babel-repro

(At least I'm seeing things locally, can't get the codesandbox server to start, but here's the repo in case it helps: https://github.com/gillkyle/babel-repro)

cc @nicolo-ribaudo (or whoever, thanks for looking into this 🙂)

The error is happening in our config merging logic https://github.com/gatsbyjs/gatsby/blob/255b56575f69787884655a3642afbb3ea90f8869/packages/gatsby/src/utils/babel-loader-helpers.js#L117-L142

This bit of code https://github.com/gatsbyjs/gatsby/blob/255b56575f69787884655a3642afbb3ea90f8869/packages/gatsby/src/utils/babel-loader-helpers.js#L100-L105 used to generate an object but now it returns a generator (console.log outputs) Object [Generator] {}

Thanks, working on a fix.

Another one #12854

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Any Gatsby project errors with "cannot read property 'resolved' of undefined" #12851

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Any Gatsby project errors with "cannot read property 'resolved' of undefined" #12851

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babel-bot commented on Feb 22, 2021

nicolo-ribaudo commented on Feb 22, 2021

babel-bot commented on Feb 22, 2021

gillkyle commented on Feb 22, 2021

gillkyle commented on Feb 22, 2021

KyleAMathews commented on Feb 22, 2021

nicolo-ribaudo commented on Feb 22, 2021

KyleAMathews commented on Feb 23, 2021

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