AirPrint code in iOS8 with Swift

http://www.ioscreator.com/tutorials/airprint-tutorial-ios8-swift

Swift Bound value in a conditional binding must be of Optional type

Started work on Apple apps. now a days am getting lot of issues.

http://stackoverflow.com/questions/27868103/swift-bound-value-in-a-conditional-binding-must-be-of-optional-type

clang compiler error migrating to Xcode 6

While compiling the new XCODE project have been getting  the below error

Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 11

resolved using the below URLs
http://www.raywenderlich.com/forums/viewtopic.php?f=2&t=19346
http://stackoverflow.com/questions/18933321/deleting-contents-from-xcode-derived-data-folder