gatsbyjs/gatsby · error

beforeChangeNode type setting for

Error message

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

What it means

While resolving a typeName.beforeChangeNode option given as a file path, require/require.resolve of that path (absolute or relative to the site directory) threw. The panic surfaces the underlying error message, meaning the path is wrong or the file throws on load.

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.

Appendix: 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)

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