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Building gatsby site on Netlify - err: Callback was already called

I can’t resolve issue with building gatsby site on netlify. Since a few days I’m getting following error:

3:17:52 PM: error UNHANDLED EXCEPTION Callback was already called.
3:17:52 PM: 
3:17:52 PM:   Error: Callback was already called.
3:17:52 PM:   
3:17:52 PM:   - async.js:16 throwError
3:17:52 PM:     [repo]/[neo-async]/async.js:16:11
3:17:52 PM:   
3:17:52 PM:   - async.js:2818 
3:17:52 PM:     [repo]/[neo-async]/async.js:2818:7
3:17:52 PM:   
3:17:52 PM:   - next_tick.js:132 _combinedTickCallback
3:17:52 PM:     internal/process/next_tick.js:132:7
3:17:52 PM:   
3:17:52 PM:   - next_tick.js:181 process._tickCallback
3:17:52 PM:     internal/process/next_tick.js:181:clock9

Package.json

{
  "name": "gatsby-starter-netlify-cms",
  "description": "Example Gatsby, and Netlify CMS project",
  "version": "1.1.3",
  "author": "Austin Green",
  "dependencies": {
    "bulma": "0.7.5",
    "gatsby": "2.17.0",
    "gatsby-image": "2.2.29",
    "gatsby-plugin-disqus": "1.1.4",
    "gatsby-plugin-google-tagmanager": "2.1.15",
    "gatsby-plugin-netlify": "2.1.22",
    "gatsby-plugin-netlify-cms": "3.0.18",
    "gatsby-plugin-offline": "2.2.10",
    "gatsby-plugin-purgecss": "2.4.0",
    "gatsby-plugin-react-helmet": "3.1.13",
    "gatsby-plugin-robots-txt": "1.5.0",
    "gatsby-plugin-sass": "2.1.20",
    "gatsby-plugin-sharp": "2.2.32",
    "gatsby-plugin-sitemap": "2.2.21",
    "gatsby-remark-autolink-headers": "2.1.16",
    "gatsby-remark-copy-linked-files": "2.1.28",
    "gatsby-remark-images": "3.1.28",
    "gatsby-remark-prismjs": "3.3.20",
    "gatsby-remark-relative-images": "^0.2.3",
    "gatsby-source-filesystem": "2.1.33",
    "gatsby-transformer-remark": "2.6.30",
    "gatsby-transformer-sharp": "2.3.0",
    "lodash": "4.17.15",
    "lodash-webpack-plugin": "0.11.4",
    "netlify-cms": "2.9.7",
    "node-sass": "4.12.0",
    "parcel-bundler": "1.12.4",
    "prismjs": "1.17.1",
    "prop-types": "15.7.2",
    "react": "16.10.2",
    "react-dom": "16.10.2",
    "react-helmet": "5.2.1",
    "uuid": "3.3.3"
  },
  "keywords": [
    "gatsby"
  ],
  "license": "MIT",
  "main": "n/a",
  "scripts": {
    "start": "npm run develop",
    "clean": "rimraf .cache public",
    "build": "npm run clean && gatsby build",
    "develop": "npm run clean && gatsby develop",
    "serve": "gatsby serve",
    "format": "prettier --trailing-comma es5 --no-semi --single-quote --write \"{gatsby-*.js,src/**/*.js}\"",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "devDependencies": {
    "prettier": "1.18.2",
    "rimraf": "2.7.1"
  }
}

Using Node 8.

Full deploy log available here: https://app.netlify.com/sites/gallant-mcnulty-8ac2d3/deploys/5e0a0637af09c64352a2e783

On localhost server all works well. I tried build site on new netlify's instance but I’m getting the same error.

Thanks for any advice.

Cheers

Solution

  • I had the same issue. Updating gatsby-plugin-netlify-cms to latest version helped.