BE0022: The project's ApiTocParent property value '[ID]' must be associated with a topic in your project
Error BE0022: The project's ApiTocParent property value '[ID]' must be associated with a topic in your project's conceptual content and must have its Visible property set to True in the content layout file.
Cause
You specified a value in the project's ApiTocParent property but the ID is either not associated with a conceptual content topic in your project or the topic's Visible property is not set to True in the content layout file.
Solution
API content can only be parented to a conceptual content topic defined within your project. The given topic must appear in a content layout file and it must have its Visible property set to True in the content layout file so that it appears in the table of contents. If your intent is to parent the API content to a topic outside of your project, use the TocParent project property instead which is intended for that purpose.