I'm trying generate the Xcode project of ASSIMP using Cmake. I know there is already one in it's workspace folder. And I just trying to generate myself. I tried to write the cmakelist.txt: cmake_minimum_required(VERSION 2.8) project(assimp) set(CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos;-iphonesimulator") set(CMAKE_OSX_SYSROOT iphoneos5.1) set(CMAKE_OSX_ARCHITECTURES $(ARCHS_STANDARD_32_BIT)) add_