dyld: Library not loaded: @rpath/libswiftCore.dylib Referenced from: /var/mobile/Applications/9D80DFDC-2568-4328-B0BF-6418C3702DE4/swift02_project.app/swift02_project Reason: no suitable image found. Did find: /private/var/mobile/Applications/9D80DFDC-2568-4328-B0BF-6418C3702DE4/swift02_project.app/Frameworks/libswiftCore.dylib: code signature invalid for ‘/private/var/mobile/Applications/9D80DFDC-2568-4328-B0BF-6418C3702DE4/swift02_project.app/Frameworks/libswiftCore.dylib‘
未解决。第二次运行，就没有这个报错了。
[!] Pods written in Swift can only be integrated as frameworks; add `use_frameworks!` to your Podfile or target to opt into using it. The Swift Pod being used is: SwiftyModel
意思是说：CocoaPods在Swift里面，只能以framework的形式使用，所以要加这句话。那么这句话在哪里加呢？在Podfile里面，在写完所有的语句之后，加上这句，示例如下：
platform :ios ,‘8.0‘ pod ‘SwiftyModel‘, ‘~> 0.1.0‘ use_frameworks!
再重新install就可以了。
原文：http://www.cnblogs.com/tanglimei/p/5129556.html