The Cubs hosted All-Star Games in 1947 and 1962, and then went through a long fallow period without one, largely because beginning in 1971 the ASG was moved to a night-game slot for TV purposes and Wrigley Field did not have lights.
With the installation of lights in 1988, the Cubs were granted hosting privileges at Wrigley Field for 1990. So everyone in Chicago was excited about the first Midsummer Classic in Wrigley in 28 years, and the first in the city since the 1983 ASG at the old Comiskey Park.
It turned out to be a clunker of a contest, unfortunately.