lucee error says Entity does not exist, even if the component exists

Question

I am newbie in Lucee administration, I am trying to set up coldbox application but every time I am getting this error:

entity [ABC] with cfc name [model.abc.ABC] does not exist, existing entities are [def,qwe,xyz,dws,dgd]

I could not found anything in web, Can any body help me out in this ?

Thanks Ritu