Hi, Robert, Sorry to mention at beginning, my target platform is iPhone. Set "OSG_BUILD_PLATFORM_IPHONE" is ON Since with XCode 7.1, I have set "IPHONE_SDKVER" to "9.1" ... Thank you! Cheers, Daniel ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=65479#65479