title: Xcode 7 fails with Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 1
body: <p>I am going through the process of updating my swift project to Swift 2.0 on Xcode 7. The following error is being reported by xcode on building the project:</p>
  
  <p><code>Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 1</code></p>
  
  <p>This happens on either SwiftyJSON or SwiftSpinner frameworks (the compiler seems to pick one first at random and fail, so the error gets reported intermittently on either or the other). I have updated these frameworks to their xcode7/swift2 compatible branches but the project still fails to compile.</p>
  
  <p>Just wondering if this is a situation other people are seeing when upgrading their project with cocoa pods framework dependencies, or if this is a compiler bug</p>