gatsby-cli 构建后没有 index.html 文件？

Question

我正在试验 GatsbyJS。我创建了一个从他们的默认站点生成器派生的新站点并进行了一些更改。当使用gatsby develop 命令时，一切都按预期工作。我去使用gatsby build，它确实生成了一个 /public 文件夹，但是没有“index.html”甚至“bundle.js”

默认站点是否“特殊”，因为它不会以典型方式生成站点？在 gatsby-config 版本中是否需要其他设置来生成 index.html？

/public 目录的ls 返回：

1-5cf9b126c8aa029e3c76.js
1-5cf9b126c8aa029e3c76.js.map
1-f2577b7d9227c6ab20bd.js
1-f2577b7d9227c6ab20bd.js.map
404
app-dc0da5ea76a79bd92e99.js
app-dc0da5ea76a79bd92e99.js.map
app-e2d084d7f150c4a0d4f4.js
app-e2d084d7f150c4a0d4f4.js.map
chunk-map.json
component---node-modules-gatsby-plugin-offline-app-shell-js-896a3f852b233b9ca05e.js
component---node-modules-gatsby-plugin-offline-app-shell-js-896a3f852b233b9ca05e.js.map
component---src-pages-404-js-8e1643e05587f89c70d6.js
component---src-pages-404-js-8e1643e05587f89c70d6.js.map
component---src-pages-404-js-c2122e5847e5d16ffe11.js
component---src-pages-404-js-c2122e5847e5d16ffe11.js.map
component---src-pages-index-js-be99ef46e818d68362b3.js
component---src-pages-index-js-be99ef46e818d68362b3.js.map
component---src-pages-index-js-edad0a6dd0d36ec7cdbd.js
component---src-pages-index-js-edad0a6dd0d36ec7cdbd.js.map
component---src-pages-page-2-js-0479e3779ff85cb5431c.js
component---src-pages-page-2-js-0479e3779ff85cb5431c.js.map
component---src-pages-page-2-js-a49a481686ec152c45b7.js
component---src-pages-page-2-js-a49a481686ec152c45b7.js.map
icons
manifest.webmanifest
offline-plugin-app-shell-fallback
pages-manifest-5c619b10fb87f94c2d85.js
pages-manifest-5c619b10fb87f94c2d85.js.map
pages-manifest-e84c50768dd42edc85fe.js
pages-manifest-e84c50768dd42edc85fe.js.map
render-page.js
render-page.js.map
static
styles-0375cdcc38b87565858c.js
styles-0375cdcc38b87565858c.js.map
styles-b76dfad3fcff2976e17c.js
styles-b76dfad3fcff2976e17c.js.map
styles.fc4fa5e094d218207796.css
webpack-runtime-50855368c384639cab1f.js
webpack-runtime-50855368c384639cab1f.js.map
webpack-runtime-66b8792cf68b5ba07ac4.js
webpack-runtime-66b8792cf68b5ba07ac4.js.map
webpack.stats.json

供参考：

$ gatsby -v
2.5.5

还有 package.json：

{
  "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": {
    "gatsby": "^2.3.5",
    "gatsby-image": "^2.0.37",
    "gatsby-plugin-manifest": "^2.0.26",
    "gatsby-plugin-offline": "^2.0.25",
    "gatsby-plugin-react-helmet": "^3.0.11",
    "gatsby-plugin-sharp": "^2.0.32",
    "gatsby-source-filesystem": "^2.0.28",
    "gatsby-transformer-sharp": "^2.1.17",
    "prop-types": "^15.7.2",
    "react": "^16.8.6",
    "react-dom": "^16.8.6",
    "react-helmet": "^5.2.0"
  },
  "devDependencies": {
    "prettier": "^1.16.4"
  },
  "keywords": [
    "gatsby"
  ],
  "license": "MIT",
  "scripts": {
    "build": "gatsby build",
    "develop": "gatsby develop",
    "format": "prettier --write src/**/*.{js,jsx}",
    "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"
  }
}

Answer 1

正如上面 cmets 中所述，问题是 gatsby develop 和 gatsby build 似乎有不同的要求。在使用bulld 命令时，需要手动导入es6 的fetch 命令（嘘）。

这只是意味着添加行

import 'isomorphic-fetch';

致所有调用fetch 的文件。