LIMA, April 4 (Reuters) - Peru's Prime Minister Gustavo

Adrianzen said on Thursday he expects to resolve a controversy

over a so-called megaport being built by China's Cosco Shipping

"in a positive way" and guaranteed its start-up by the end of

this year, as planned.

Last month, Peruvian authorities said they hoped to fix an

"administrative error" giving Cosco exclusivity over the port's

operations, saying it was looking to annul its own decision

granting the exclusivity.

(Reporting by Marco Aquino; Editing by)