Rails sitemap_generator by kjvarga doesn't run because of legacy ACL Trying to set access that already has uniform-bucket-level-access

Question

I'm trying to use rails sitemap_generator. The Gem can be found here. https://github.com/kjvarga/sitemap_generator/ I'm getting the error

rake aborted!
Google::Cloud::InvalidArgumentError: invalid: Cannot insert legacy ACL for an object when uniform bucket-level access is enabled. Read more at https://cloud.google.com/storage/docs/uniform-bucket-level-access.

The adapter's code is here I've high lighted the line that sets acl to public.

This is how I initialized it

SitemapGenerator::Sitemap.adapter = SitemapGenerator::GoogleStorageAdapter.new(
  credentials: JSON.parse(ENV['GOOGLE_APPLICATION_CREDENTIALS']),
  project_id: 'homeoncall',
  bucket: 'homeoncall.com'
)

Is there another option I can pass when I initialize that doesn't try to set the acl policy. I can always change the bucket's policy on Google Cloud Platform but thats not the access policy I want to use. I appreciate any help or suggestions. Thank you all.