Governor Andrew Cuomo says he has a problem with Mayor Bill de Blasio's plans to build affordable housing at Sunnyside Yards. 

Speaking with NY1, Cuomo says Sunnyside Yards is still needed as functioning train yards. 

During the State of the City on Tuesday, de Blasio announced his plan to build housing on top of the yards as part of his push for more affordable housing. 

Cuomo says that the state is studying a number of long term options for the site, which is owned by a combination of the MTA, Amtrak and a private owner. 

"I agree with the mayor's push and the principle that New York City needs more affordable housing. It's something I've worked on all my adult life. And it's something I will continue to work on and in partner with the mayor. Sunnyside Yards specifically is problematic but I agree with the mayor's overal thrust and I applaud him for it," Cuomo said.

De Blasio plans to build or preserve 200,000 units of affordable housing over the next decade.