gatsbyjs/gatsby · error

beforeChangeNode type setting for ${typeName} threw error: $

Error message

beforeChangeNode type setting for ${typeName} threw error:
${e.message}

What it means

Error "beforeChangeNode type setting for ${typeName} threw error: ${e.message}" thrown in gatsbyjs/gatsby.

Source

Thrown at packages/gatsby-source-wordpress/src/steps/process-and-validate-plugin-options.ts:125

        }

        try {
          const absoluteRequirePath: string | undefined = path.isAbsolute(
            beforeChangeNodePath
          )
            ? beforeChangeNodePath
            : require.resolve(
                path.join(gatsbyStore.program.directory, beforeChangeNodePath)
              )

          const beforeChangeNodeFn = require(absoluteRequirePath)

          if (beforeChangeNodeFn) {
            userPluginOptions.type[typeName].beforeChangeNode =
              beforeChangeNodeFn
          }
        } catch (e) {
          helpers.reporter.panic(
            formatLogMessage(
              `beforeChangeNode type setting for ${typeName} threw error:\n${e.message}`
            )
          )
        }
      })

      return userPluginOptions
    },
  },
]

export const processAndValidatePluginOptions = (
  helpers: GatsbyNodeApiHelpers,
  pluginOptions: IPluginOptions
): IPluginOptions => {
  let userPluginOptions = cloneDeep(pluginOptions)

View on GitHub (pinned to 8b06340921)

Solutions

1. Read the thrown error message and fix the bug in your beforeChangeNode file for that type.
2. Temporarily remove the beforeChangeNode option to confirm the error comes from that file.

When it happens

Trigger: Thrown at packages/gatsby-source-wordpress/src/steps/process-and-validate-plugin-options.ts:125 when the library encounters an invalid state.

Common situations: Occurs when the beforeChangeNode module for a type throws while processing options. Fix the error inside the referenced beforeChangeNode file.

AI-assisted analysis of gatsbyjs/gatsby@8b06340921 (2026-08-13). Data as JSON: /api/errors/a7dd32b05b415e9e. Report an issue: GitHub.