When adding product to cart I get: Cannot read property 'message' of undefined

[catboxer]

onError
src/components/cart/add-to-cart-button/index.js:63.

  60 |   },
  61 |   onError: (error) => {
  62 |     if (error) {
> 63 |       setRequestError(error.graphQLErrors[0].message);

Installed latest plugins. Any suggestions on what might be the issue would be greatly appreciated.

[imranhsayed]

I cannot replicate the issue, I deployed and tested here and it works fine.
https://gatsby-woocommerce-theme.netlify.app/

Can you console.log( error ) and see what you are getting?

[catboxer]

when i console.log(error) I get console.log( error )
VM198:1 Uncaught ReferenceError: error is not defined
at :1:14

I should have also mentioned that when I clicked add to cart this mutation error came up.
I am using the app Local for my local wp development on my site.
.env file
WORDPRESS_SITE_URL=http://mikestore.local
GATSBY_SITE_URL=http://localhost:8000

and when I go to http://localhost:8000/__graphQL it all works.

It is when I click on add to cart that this happens in console:

Uncaught (in promise) TypeError: Cannot read property 'message' of undefined
at onError (index.js:63)
at MutationData.../node_modules/@apollo/client/react/data/MutationData.js.MutationData.onMutationError (MutationData.js:90)
at MutationData.js:22

onError	@	index.js:63
	../node_modules/@apollo/client/react/data/MutationData.js.MutationData.onMutationError	@
	(anonymous)	@
	Promise.catch (async)
	MutationData._this.runMutation	@
	handleAddToCartClick	@
	callCallback	@
	invokeGuardedCallbackDev	@
	invokeGuardedCallback	@
	invokeGuardedCallbackAndCatchFirstError	@
	executeDispatch	@
	processDispatchQueueItemsInOrder	@
	processDispatchQueue	@
	dispatchEventsForPlugins	@
	(anonymous)	@
	batchedEventUpdates$1	@
	batchedEventUpdates	@
	dispatchEventForPluginEventSystem	@
	attemptToDispatchEvent	@
	dispatchEvent	@
	unstable_runWithPriority	@
	runWithPriority$1	@
	discreteUpdates$1	@
	discreteUpdates	@
	dispatchDiscreteEvent

[AUFrasier]

I am also experiencing this issue. I have a hunch it's relating to a persisting CORS policy issue. Has there been any movement on this? I haven't been able to come to a resolution. @imranhsayed @catboxer

[avidsapp]

I was also experiencing this issue. I resolved the error by changing the GATSBY_WORDPRESS_URL env variable to my WordPress backend url

[catboxer]

That worked for me. Thanks

[hofdee]

getting this error. Please help. have tried everything i can think of