Advice is a noun that means "a suggestion" or "a recommendation." Advise is a verb that means "to suggest," "to give notice," or "to give advice or counsel to."
Dr. Perez's advice was to solve the file-naming problems before designing the network.
Dr. Perez advised the team to solve the
file-naming problem before designing the network.
This letter is to advise you that we will no
longer support software release 1.0.