This app implements a progressive web application frontend using Gatsby and gatsby-plugin-manifest and gatsby-plugin-offline.
> gatsby build
success open and validate gatsby-configs - 0.086s
lscpu: failed to determine number of CPUs: /sys/devices/system/cpu/possible: No such file or directory
success load plugins - 0.773s
success onPreInit - 0.046s
success delete html and css files from previous builds - 0.004s
success initialize cache - 0.008s
success copy gatsby files - 0.043s
success onPreBootstrap - 0.017s
lscpu: failed to determine number of CPUs: /sys/devices/system/cpu/possible: No such file or directory
success createSchemaCustomization - 0.008s
success Checking for changed pages - 0.000s
success source and transform nodes - 0.178s
success building schema - 0.488s
info Total nodes: 53, SitePage nodes: 3 (use --verbose for breakdown)
success createPages - 0.038s
success Checking for changed pages - 0.000s
success createPagesStatefully - 0.076s
success update schema - 0.063s
success onPreExtractQueries - 0.001s
success extract queries from components - 0.201s
success write out redirect data - 0.001s
success Build manifest and related icons - 0.113s
success onPostBootstrap - 0.115s
info bootstrap finished - 5.199s
success run static queries - 0.012s - 1/1 80.81/s
error There was an error in your GraphQL query:
Cannot return null for non-nullable field SitePage.internalComponentName.
The field "SitePage.internalComponentName." was explicitly defined as non-nullable via the schema customization API (by yourself or a plugin/theme). This means that this field is not optional and you have to define a value. If this is not your desired behavior and you defined the schema yourself, go to "createTypes" in gatsby-node.js. If you're using a plugin/theme, you can learn more here on how to fix field types:
https://www.gatsbyjs.org/docs/schema-customization/#fixing-field-types
1 | query tmpbuildF8B90555SrcpagesindexJs3427033138 {
2 | allSitePage {
3 | edges {
4 | node {
5 | path
> 6 | internalComponentName
| ^
7 | id
8 | }
9 | }
10 | }
11 | }
12 |
File path: /tmp/build_f8b90555/src/pages/index.js
Url path: /
Plugin: none
not finished run page queries - 0.026s
Kick off your project with this hello-world boilerplate. This starter ships with the main Gatsby configuration files you might need to get up and running blazing fast with the blazing fast app generator for React.
Have another more specific idea? You may want to check out our vibrant collection of official and community-created starters.
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Create a Gatsby site.
Use the Gatsby CLI to create a new site, specifying the hello-world starter.
# create a new Gatsby site using the hello-world starter gatsby new my-hello-world-starter https://github.com/gatsbyjs/gatsby-starter-hello-world
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Start developing.
Navigate into your new site’s directory and start it up.
cd my-hello-world-starter/ gatsby develop
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Open the source code and start editing!
Your site is now running at
http://localhost:8000
!Note: You'll also see a second link:
http://localhost:8000/___graphql
. This is a tool you can use to experiment with querying your data. Learn more about using this tool in the Gatsby tutorial.Open the
my-hello-world-starter
directory in your code editor of choice and editsrc/pages/index.js
. Save your changes and the browser will update in real time!
A quick look at the top-level files and directories you'll see in a Gatsby project.
.
├── node_modules
├── src
├── .gitignore
├── .prettierrc
├── gatsby-browser.js
├── gatsby-config.js
├── gatsby-node.js
├── gatsby-ssr.js
├── LICENSE
├── package-lock.json
├── package.json
└── README.md
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/node_modules
: This directory contains all of the modules of code that your project depends on (npm packages) are automatically installed. -
/src
: This directory will contain all of the code related to what you will see on the front-end of your site (what you see in the browser) such as your site header or a page template.src
is a convention for “source code”. -
.gitignore
: This file tells git which files it should not track / not maintain a version history for. -
.prettierrc
: This is a configuration file for Prettier. Prettier is a tool to help keep the formatting of your code consistent. -
gatsby-browser.js
: This file is where Gatsby expects to find any usage of the Gatsby browser APIs (if any). These allow customization/extension of default Gatsby settings affecting the browser. -
gatsby-config.js
: This is the main configuration file for a Gatsby site. This is where you can specify information about your site (metadata) like the site title and description, which Gatsby plugins you’d like to include, etc. (Check out the config docs for more detail). -
gatsby-node.js
: This file is where Gatsby expects to find any usage of the Gatsby Node APIs (if any). These allow customization/extension of default Gatsby settings affecting pieces of the site build process. -
gatsby-ssr.js
: This file is where Gatsby expects to find any usage of the Gatsby server-side rendering APIs (if any). These allow customization of default Gatsby settings affecting server-side rendering. -
LICENSE
: This Gatsby starter is licensed under the 0BSD license. This means that you can see this file as a placeholder and replace it with your own license. -
package-lock.json
(Seepackage.json
below, first). This is an automatically generated file based on the exact versions of your npm dependencies that were installed for your project. (You won’t change this file directly). -
package.json
: A manifest file for Node.js projects, which includes things like metadata (the project’s name, author, etc). This manifest is how npm knows which packages to install for your project. -
README.md
: A text file containing useful reference information about your project.
Looking for more guidance? Full documentation for Gatsby lives on the website. Here are some places to start:
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For most developers, we recommend starting with our in-depth tutorial for creating a site with Gatsby. It starts with zero assumptions about your level of ability and walks through every step of the process.
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To dive straight into code samples, head to our documentation. In particular, check out the Guides, API Reference, and Advanced Tutorials sections in the sidebar.