Problemas na instalação de extensão do magento 2.2 via composer. 

Root package 'dahman/module-apiexpress' cannot require it self in its composer.json
Did you accidentally name your root package after an external package?


Quando alteradas algumas linhas no código segundo algumas dicas da web:

cannot install via composer error: because of magento composer at any version for your minimum-stability (stable). Check the package spelling or your minimum-stability.
Ubuntu Magento 2.2

Category: IT & Programming
Subcategory: Web development
What is the scope of the project?: Small change or bug
Is this a project or a position?: Project
I currently have: I have an idea
Required availability: As needed
Roles needed: Developer