Its only for users if they ask how to add project :

Error on Add Project: You don't have permission to access the requested page

1. Hover on "Administration" on Top -> Select "Company".

2. In "Contacts" Section, select "Edit user account" of "admin".

3. In "Options" section, For "Can manage his/her own projects" select "Yes" 

Don't follow this steps for making package.

4. Release date : https://github.com/Project-Pier/ProjectPier-Core/releases