Beanwriter: Failed to create getter for node type: seosupport:seo

Reproduction steps:
1. Open the CMS doc type editor.
2. Choose one of the available doctype.
3. Add the SEO compund to it.
4. Commit your changes.
5. Open the BeanWriter tool in Essentials.
6. Execute it.

Expected result:
It adds the getter method for the content bean.

Actual result:
It does not adds just leaves a comment:
/**

• TODO: Beanwriter: Failed to create getter for node type: seosupport:seo
  */