Locales not coming through build package

Has anyone run into the issue when adding localization to an extension where when you run pnpm build the _locales files do not come across? Are they supposed to? When I try building and packaging the extension to upload to the Chrome store I get the error: "default_locale is missing in manifest". The default_locale is set in the package.json and it is set to en. Completely works running locally in dev and I followed the Plasmo docs quideline on internationalization setup. Thanks in advance!