[Error] Could not find my_project package

If a package name is included in the search_order of a project-level dispatch config, dbt expects that package to contain macros which are viable candidates for dispatching. If an included package does not contain any macros, dbt will raise an error like:

Compilation Error
  In dispatch: Could not find package 'my_project'

This does not mean the package or root project is missing—it means that any macros from it are missing, and so it is missing from the search spaces available to dispatch.

If you've tried the step above and are still experiencing this behavior - reach out to the Support team at support@getdbt.com and we'll be happy to help!