# Error building with gatsby-source-prismic in the sourceNodes lifecycle **URL:** \ **Category:** Developing with Prismic\ **Tags:** gatsby\ **Created:** [July 28, 2021, 12:28am UTC](https://community.prismic.io/t/error-building-with-gatsby-source-prismic-in-the-sourcenodes-lifecycle/6419 "2021-07-28T00:28:30Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![dune.architect](https://dub1.discourse-cdn.com/flex013/user_avatar/community.prismic.io/dune.architect/32/2645_2.png) [@dune.architect](https://community.prismic.io/u/dune.architect)\ **Post date:** [July 28, 2021, 12:28am UTC](https://community.prismic.io/t/error-building-with-gatsby-source-prismic-in-the-sourcenodes-lifecycle/6419/1 "2021-07-28T00:28:30Z")
Hi, I'm attempting to build my first Gatsby site using the Prismic plugin. I have installed and configured the plugin, connected it to my prismic repository with an access token, and applied my custom types schema. When building I am receiving the following error: ```auto "gatsby-source-prismic" threw an error while running the sourceNodes lifecycle: a is not a function 61 | } 62 | > 63 | const buildAll = async ( | ^ 64 | pluginOptions: PluginOptions, 65 | gatsbyContext: SourceNodesArgs, 66 | typePaths: TypePath[], File: node_modules/gatsby-source-prismic/src/gatsby-node.ts:63:15 ``` As far as I can tell I have followed the installation and setup instructions correctly. From looking at other issues, this may be some kind of issue with my `front_page` custom type? I am unsure how to proceed. I am using **gatsby-source-prismic 3.3.6** gatsby-config and my custom type schema are below: ```javascript // gatsby-config.js const path = require('path'); const linkResolver = require('./src/utils/linkResolver'); console.log(`Running in the ${process.env.NODE_ENV} environment.`); require('dotenv').config({ path: `.env.${process.env.NODE_ENV}`, }); module.exports = { siteMetadata: { ... }, flags: { PRESERVE_WEBPACK_CACHE: true }, plugins: [ `gatsby-plugin-sass`, `gatsby-plugin-react-helmet`, `gatsby-plugin-image`, { resolve: `gatsby-plugin-ts`, options: { fileName: `types/graphql.ts`, documentPaths: ['./src/ **/*.{ts,tsx}', './.cache/fragments/*.js', './node_modules/gatsby-*/** /*.js'], }, }, { resolve: `gatsby-source-prismic`, options: { repositoryName: 'pleasedonttrip', accessToken: `${process.env.PRISMIC_API_KEY}`, linkResolver: ({ node, key, value }) => linkResolver, schemas: { front_page: require('./prismic_schemas/front_page.json'), }, }, }, { resolve: `gatsby-plugin-root-import`, options: { src: path.join(__dirname, 'src'), components: path.join(__dirname, 'src/components'), pages: path.join(__dirname, 'src/pages'), images: path.join(__dirname, 'src/images'), styles: path.join(__dirname, 'src/styles'), utils: path.join(__dirname, 'src/utils'), types: path.join(__dirname, 'types'), }, }, { resolve: `gatsby-source-filesystem`, options: { name: `images`, path: `${__dirname}/src/images`, }, }, `gatsby-transformer-sharp`, `gatsby-plugin-sharp`, { resolve: `gatsby-plugin-manifest`, options: { name: `gatsby-starter-default`, short_name: `starter`, start_url: `/`, background_color: `#663399`, theme_color: `#663399`, display: `minimal-ui`, icon: `src/images/gatsby-icon.png`, }, }, ], }; ``` ```javascript // front_page.json { "Main" : { "lineup_image_desktop" : { "type" : "Image", "config" : { "constraint" : { "width" : null, "height" : null }, "thumbnails" : [], "label" : "Lineup Image Desktop" } }, "lineup_image_tablet" : { "type" : "Image", "config" : { "constraint" : { }, "thumbnails" : [], "label" : "Lineup Image Tablet" } }, "lineup_image_mobile" : { "type" : "Image", "config" : { "constraint" : { }, "thumbnails" : [], "label" : "Lineup Image Mobile" } }, "hide_countdown" : { "type" : "Boolean", "config" : { "placeholder_false" : "show", "placeholder_true" : "hide", "default_value" : false, "label" : "Hide Countdown" } }, "countdown_date" : { "type" : "Timestamp", "config" : { "label" : "Countdown Date" } }, "tickets_title" : { "type" : "StructuredText", "config" : { "single" : "heading2", "label" : "Tickets Title", "placeholder" : "Tickets" } }, "ticket_purchase_link" : { "type" : "Link", "config" : { "allowTargetBlank" : true, "label" : "Ticket Purchase Link", "select" : null } }, "event_dates" : { "type" : "StructuredText", "config" : { "single" : "heading2", "label" : "Event Dates", "placeholder" : "June 11 - 14" } }, "event_synopsis" : { "type" : "Group", "config" : { "fields" : { "synopsis_block_title" : { "type" : "StructuredText", "config" : { "single" : "heading3", "label" : "Synopsis Block Title", "placeholder" : "Wellness" } }, "synopsis_block_text" : { "type" : "StructuredText", "config" : { "single" : "preformatted,strong,em,hyperlink,embed,list-item,o-list-item", "allowTargetBlank" : true, "label" : "Synopsis Block Text", "placeholder" : "Balance your body & soul with daily yoga..." } } }, "label" : "Event Synopsis" } }, "promo_video" : { "type" : "Embed", "config" : { "label" : "Promo Video", "placeholder" : "youtube.com/watch?" } }, "info_title" : { "type" : "StructuredText", "config" : { "single" : "heading2", "label" : "Info Title", "placeholder" : "Info" } }, "info_text" : { "type" : "StructuredText", "config" : { "multi" : "paragraph,preformatted,heading1,heading2,heading3,heading4,heading5,heading6,strong,em,hyperlink,image,embed,list-item,o-list-item,rtl", "allowTargetBlank" : true, "label" : "Info Text" } }, "faqs_title" : { "type" : "StructuredText", "config" : { "single" : "heading2", "label" : "FAQS Title", "placeholder" : "FAQS" } }, "faqs_text" : { "type" : "StructuredText", "config" : { "multi" : "paragraph,preformatted,heading1,heading2,heading3,heading4,heading5,heading6,strong,em,hyperlink,image,embed,list-item,o-list-item,rtl", "allowTargetBlank" : true, "label" : "FAQS Text" } }, "footer_quote" : { "type" : "StructuredText", "config" : { "single" : "heading4", "label" : "Footer Quote", "placeholder" : "We can never obtain peace..." } }, "footer_quote_background" : { "type" : "Image", "config" : { "constraint" : { }, "thumbnails" : [], "label" : "Footer Quote Background" } } } } ``` ---
**Author:** ![Pau](https://dub1.discourse-cdn.com/flex013/user_avatar/community.prismic.io/pau/32/5422_2.png) [@Pau](https://community.prismic.io/u/Pau)\ **Post date:** [July 29, 2021, 12:28am UTC](https://community.prismic.io/t/error-building-with-gatsby-source-prismic-in-the-sourcenodes-lifecycle/6419/3 "2021-07-29T00:28:29Z")
Hello, have you tried upgrading your dependencies. We have a guide that explains how to update the gatsby-source-prismic plugin from version 3 to version 4. > **[Gatsby Migration Guide: gatsby-source-prismic V3 to V4](https://prismic.io/docs/technologies/gatsby-source-prismic-v3-to-v4)** > > Upgrade the gatsby-source-prismic plugin from version V3 to V4 on your Gatsby project. ---
**Author:** ![dune.architect](https://dub1.discourse-cdn.com/flex013/user_avatar/community.prismic.io/dune.architect/32/2645_2.png) [@dune.architect](https://community.prismic.io/u/dune.architect)\ **Post date:** [July 29, 2021, 6:51pm UTC](https://community.prismic.io/t/error-building-with-gatsby-source-prismic-in-the-sourcenodes-lifecycle/6419/4 "2021-07-29T18:51:38Z")
Thank you @Pau , that solved my issue. I'm not sure how I installed the previous version ---
**Author:** ![system](https://dub1.discourse-cdn.com/flex013/user_avatar/community.prismic.io/system/32/1746_2.png) [@system](https://community.prismic.io/u/system)\ **Post date:** [July 30, 2021, 6:52pm UTC](https://community.prismic.io/t/error-building-with-gatsby-source-prismic-in-the-sourcenodes-lifecycle/6419/5 "2021-07-30T18:52:22Z")
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**Author:** ![system](https://dub1.discourse-cdn.com/flex013/user_avatar/community.prismic.io/system/32/1746_2.png) [@system](https://community.prismic.io/u/system)\ **Post date:** [December 9, 2021, 3:33pm UTC](https://community.prismic.io/t/error-building-with-gatsby-source-prismic-in-the-sourcenodes-lifecycle/6419/6 "2021-12-09T15:33:26Z")