There is a NextJS + React + JSS app. After upgrading to the latest JSS version (21.4.0 ATM) and installing Multisite plugin, the following error appeared on build:

Writing generate-component-builder plugins to C:\app\scripts\temp\generate-component-builder-plugins.ts
Error: EPERM: operation not permitted, open 'C:\app\scripts\temp\generate-component-builder-plugins.ts'

Looks like the file cannot be created. Works well locally. Previously, other files were generated in /temp, but the error did not appear.

  • check that temp folder is present
    – Anton
    Oct 13, 2023 at 12:05
  • How did you add the plugin? What command are you using to build?
    – Richard Seal
    Oct 13, 2023 at 12:55
  • Temp folder contains committed 'GraphQLIntrospectionResult.json' file so yes, it is present. To add a plugin I created an app using nextjs-multisite plugin and merged with my current app. Can run it as start:connected or start:production (or just perform yarn build). Site resolving works perfectly fine in local Docker setup. Issue appears during deployment to k8s. Oct 16, 2023 at 13:43
  • I also tried to commit the generated file (for the sake of testing) and received another error which states that the file is here but cannot be open: Error: EPERM: operation not permitted, open 'C:\app\src\temp\componentBuilder.ts. Oct 16, 2023 at 14:09

1 Answer 1


Found 2 ways how to solve it.

  1. (Unacceptable). Run rendering container as admin. Added to the rendering Dockerfile:

    USER ContainerAdministrator
  2. Upgrading to the latest JSS brought two new records in the /scripts/generate-plugins.ts file (the first two):

    const pluginDefinitions: PluginDefinition[] = [
      distPath: 'scripts/temp/generate-component-builder-plugins.ts',
      rootPath: 'scripts/generate-component-builder/plugins',
      moduleType: ModuleType.ESM,
      distPath: 'scripts/temp/config-plugins.ts',
      rootPath: 'scripts/config/plugins',
      moduleType: ModuleType.ESM,
      distPath: 'src/temp/sitemap-fetcher-plugins.ts',
      rootPath: 'src/lib/sitemap-fetcher/plugins',
      moduleType: ModuleType.ESM,

    I noticed that all the old records distPath values were located under /src so I changed distPath: 'scripts/temp/... to distPath: 'src/temp/.... The error has gone...

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