TypeError: Cannot read property 'data' of undefined

Please help, i don’t know where is my error… It’s when i try to deploy my site gatsby with netlify

3:58:01 PM: error Plugin gatsby-source-wordpress returned an error 3:58:01 PM: 3:58:01 PM: TypeError: Cannot read property ‘data’ of undefined 3:58:01 PM:
3:58:01 PM: - fetch.js:148 3:58:01 PM: [repo]/[gatsby-source-wordpress]/fetch.js:148:23 3:58:01 PM:
3:58:01 PM: - Generator.throw 3:58:01 PM:
3:58:01 PM: - next_tick.js:68 process._tickCallback 3:58:01 PM: internal/process/next_tick.js:68:7 3:58:01 PM:
3:58:01 PM: 3:58:04 PM: failed during stage ‘building site’: Build script returned non-zero exit code: 1 3:58:01 PM: Skipping functions preparation step: no functions directory set 3:58:01 PM: Caching artifacts 3:58:04 PM: Shutting down logging, 15 messages pending`

[freiksenet]

I’m going to close this issue, as apparently it’s been resolved 😃 Feel free to open it again if you have any more questions.

Thank you for using Gatsby! 💜 💪

[freiksenet]

1:36:50 PM: 
1:36:50 PM: The request failed with error code "ECONNREFUSED"

This means you don’t have a wordpress instance running at that location. I see it’s a localhost location - you need to change this URL to your deployed wordpress instance when publishing at Netlify.