Yes, of course, that is why I'm here
In Segger Embedded Studio 4.16, go to File -> Open nRF Connect SDK Project. Make sure to choose nrf9160_pca10090ns under board name. This should solve your issue.
I was doing it with that option only and getting the error.
When I compile the asset tracker application using nrf9160_pca10090, I get the same error as you:

When I compile the application using nrf9160_pca10090ns, I get:

But I am doing it in non secure mode only and still getting the error.Why so?
Actually in both cases I get the errors.There is no difference in errors with and without "ns".