'router-outlet' is not a known element
By Benjamin Schaden at May 24 2020
router-outlet' is not a known element:
By Jesus Hauck at Apr 08 2021
router-outlet' is not a known element angular
By Gerard Gutmann at Jan 23 2021
error ng8001 'router-outlet' is not a known element
By Earnest Lehner at Apr 22 2021