NEW YORK (AP) â¿¿ Shares of Starbucks Corp. slid more than 4 percent in premarket trading on Friday as the coffee chain reported that sales slowed in parts of Europe. The Seattle company also raised its full-year earnings guidance, but missed Wall Street's expectations. And its third-quarter and fourth-quarter outlooks came in below analysts' estimates. Starbucks announced late Thursday that revenue at cafes open at least a year dropped 1 percent in the region that includes Europe, Middle East, Russia and Africa, also known as EMEA. This figure is a key metric because it excludes the impact of newly opened or closed stores. Chief Financial Officer Troy Alstead said that the dip was largely the result of select regions of Europe that were hard hit by economic turmoil. He said that Starbucks is "not immune" from high unemployment and fragile consumer confidence in the region. R.W. Baird's David Tarantino said in a client note that revenue for the EMEA region was below the 2 percent increase reported in the first quarter, and that solid results in the U.K. and France were more than offset by disappointing performances in Germany and Ireland. He said the EMEA business is still "a work in progress." Starbucks also increased its full-year earnings forecast on Thursday to a range of $1.81 to $1.84 per share from $1.78 to $1.82 per share. Analysts polled by Fact Set expect higher earnings of $1.86 per share. It also provided a third-quarter guidance of 45 cents to 46 cents per share. For the fourth quarter, Starbucks anticipates 46 cents to 48 cents per share. Wall Street is looking for a bit more, forecasting third-quarter earnings of 47 cents per share and fourth-quarter earnings of 50 cents per share. Tarantino did not seem overly concerned, saying that Starbucks was taking its usual conservative approach to guidance.