I'm working with MCUXpresso and a project for a Kinetis MK66. I open one of the examples of the SDK, I modify the package for LQFP144 and the clock with crystal 16Mhz.
There are 3 errors in the Problems window, attached capture screen of the errors. If I press with the right mouse button on each error, there is an option to Add component to the project, so I press this option, it seems that something is updated, but all three errors are always there, they are never deleted.
The program is compiled without errors and the option to update the project is available and executed.
What is the problem, why can not I eliminate those errors and what is their meaning?