tag does not exist in XML namespace

Question

This error seems to be posted all over the place but each one seems to have its own solution, none of which solved my problem.

I am getting an error for a Resource D

Answer 1

If you have user control in same assembly as WPF form make sure you get rid of assembly part while importing namespace

Wrong Import: xmlns:usercontrol="clr-namespace:CCFARKS.UserControls;assembly=CCFARKS"

Corret: xmlns:usercontrol="clr-namespace:CCFARKS.UserControls"