ReferenceError: regeneratorRuntime is not defined

[benjaminhoffman]

Description

Adding async/await to Gatsby's blog creates this error:

email-capture-form.js:46 Uncaught (in promise) ReferenceError: regeneratorRuntime is not defined

After searching the issues, I've seen this pop up a couple times.

This line is throwing the error: https://github.com/gatsbyjs/gatsby/pull/4589/files#diff-0b944fc95fef100bc9dd4aa6fbcb4647R44

[m-allanson]

Hey @benjaminhoffman 👋 I think this can be fixed with the following steps: #3931 (comment)

[benjaminhoffman]

Hey @m-allanson ! Thanks for the comment. Sadly, I'm not sure if that did the trick. :( . I followed that step for both gatsby and for my plugin.

The branch is mailchimp2 and here is the diff: https://github.com/gatsbyjs/gatsby/compare/master...benjaminhoffman:mailchimp2?expand=1

Do you have a moment to pull down my branch? My steps:

git checkout -b mailchimp2
git pull origin mailchimp2
cd www
rm -rf .cache public node_modules
yarn install
yarn build
yarn serve

Then I load this page: http://localhost:9000/blog/2018-03-07-why-we-created-the-plugin-library/

The error still shows in the console. Any other guesses on what it can be?

[m-allanson]

I've had a look at this and got as far as confirming the error using your above repro steps. But I haven't had a chance to dig any further yet.

I'd like to come back and work out a fix for this issue later. In the interest of getting your PR going again it may be worth writing the offending method with Promises instead of async / await, particularly as async / await isn't used anywhere else in the Gatsby site.

[benjaminhoffman]

refactored to using then/catch instead of async/await . thx for the rec @m-allanson !
#4589

closing this.

[thebarty]

Just ran into the same error. It sucks…

[dominiceden]

Switching to .then() instead of async/await fixed it for me.