Appium 1.9.0 Released

I just updated to appium 1.9.0. And whenever i try to run a test i get the error message: org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: The desired capabilities must include either 'appPackage' or 'browserName' Build info: version: '3.5.2', revision: '10229a9', time: '2017-08-21T17:29:55.15Z' System info: host: 'KEL', ip: '192.168.249.2', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_171' Driver info: driver.version: AndroidDriver remote stacktrace: UnknownError: An unknown server-side error occurred while processing the command. Original error: The desired capabilities must include either 'appPackage' or 'browserName'
Meanwhile, i have appPackage set in my DesiredCapabilities object.