Build script returned non-zero exit code: 1

Support
,
3

Hi Perry,

No problems — the project does build fine locally, the package.json is below:

{
  "name": "gatsby-starter-default",
  "private": true,
  "description": "A simple starter to get up and developing quickly with Gatsby",
  "version": "0.1.0",
  "author": "Kyle Mathews <mathews.kyle@gmail.com>",
  "dependencies": {
    "@emotion/core": "^10.0.21",
    "@emotion/styled": "^10.0.17",
    "gatsby": "^2.19.12",
    "gatsby-image": "^2.2.40",
    "gatsby-plugin-emotion": "^4.1.22",
    "gatsby-plugin-manifest": "^2.2.41",
    "gatsby-plugin-offline": "^3.0.34",
    "gatsby-plugin-react-helmet": "^3.1.22",
    "gatsby-plugin-react-svg": "^2.1.2",
    "gatsby-plugin-sharp": "^2.4.5",
    "gatsby-plugin-web-font-loader": "^1.0.4",
    "gatsby-source-filesystem": "^2.1.48",
    "gatsby-source-instagram": "^0.5.1",
    "gatsby-source-prismic": "^2.3.0-alpha.3",
    "gatsby-transformer-json": "^2.2.26",
    "gatsby-transformer-remark": "^2.6.50",
    "gatsby-transformer-sharp": "^2.3.14",
    "html-to-react": "^1.4.2",
    "prismic-reactjs": "^1.2.0",
    "prop-types": "^15.7.2",
    "react": "^16.10.2",
    "react-dom": "^16.10.2",
    "react-helmet": "^5.2.1"
  },
  "devDependencies": {
    "prettier": "^1.18.2"
  },
  "keywords": [
    "gatsby"
  ],
  "license": "MIT",
  "scripts": {
    "build": "gatsby build",
    "develop": "gatsby develop",
    "format": "prettier --write \"**/*.{js,jsx,json,md}\"",
    "start": "npm run develop",
    "serve": "gatsby serve",
    "test": "echo \"Write tests! -> https://gatsby.dev/unit-testing \""
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/gatsbyjs/gatsby-starter-default"
  },
  "bugs": {
    "url": "https://github.com/gatsbyjs/gatsby/issues"
  }
}