Gatsby: Source contetful returns `Cannot read property 'localized' of undefined` error

[d-ivashchuk]

I have changed some data in contentful and without changing anything in my gatsby project or config I am now getting this error on develop or build:

error Plugin gatsby-source-contentful returned an error
TypeError: Cannot read property 'localized' of undefined

Can't find anything useful anywhere, and it seems like some chache issues to me, as I don't even have content types in contentful which have localizations that I know to be accountable for such errors.

Solution:

Seems like I solved this one by regenerating contentful access token and using it in config

[overlordofmu]

@d-ivashchuk, just letting you know this was useful troubleshooting a similar issue today. Even though you resolved it yourself, sharing the issue and solution helped someone else today. Thank you for sharing what you learned!

[tobiasfrei]

Solution is to delete the .cache folder