Getting error while setting date

driver.findElement(By.xpath("//com.hmh.api.widget.TextView[contains(@resource-id,‘date_picker_day’)]")).sendKeys(“25”);
driver.findElement(By.xpath("//com.hmh.api.widget.TextView[contains(@resource-id,‘date_picker_month’)]")).sendKeys(“Aug”);
driver.findElement(By.xpath("//com.hmh.api.widget.TextView[contains(@resource-id,‘date_picker_year’)]")).sendKeys(“2015”);