title: Alamofire error on carthage update
body: <p>My Cartfile:</p>
  
  <pre><code>github "ReactiveCocoa/ReactiveCocoa" "v4.0.0-alpha.4"
  github "ikesyo/Himotoki" ~&gt; 1.3.0
  github "Alamofire/Alamofire" ~&gt; 3.1.2
  github "Swinject/Swinject" == 0.5.0
  
  github "Quick/Quick" == 0.8.0
  github "Quick/Nimble" == 3.0.0
  </code></pre>
  
  <p>Error:</p>
  
  <pre><code>*** Fetching ReactiveCocoa
  *** Fetching Himotoki
  *** Fetching Alamofire
  *** Fetching Swinject
  *** Fetching Quick
  *** Fetching Nimble
  *** Fetching Result
  *** Checking out Himotoki at "1.3.2"
  *** Checking out ReactiveCocoa at "4faa7bc75cd30682e9e5615bb6359988f0339800"
  *** Downloading Swinject at "v0.5"
  *** Downloading Nimble at "Nimble v3.0.0"
  *** Checking out Alamofire at "3.1.4"
  *** Downloading Result at "1.0.1: A New Beginning"
  *** Downloading Quick at "v0.8.0"
  *** xcodebuild output can be found in /var/folders/tr/4fjkzly53sv7fwt6yxt1_fl40000gn/T/carthage-xcodebuild.lsMXnQ.log
  *** Building scheme "Alamofire iOS" in Alamofire.xcworkspace
  2015-12-17 13:25:56.420 xcodebuild[21997:5587012] [MT] PluginLoading: Required plug-in compatibility UUID F41BD31E-2683-44B8-AE7F-5F09E919790E for plug-in at path '~/Library/Application Support/Developer/Shared/Xcode/Plug-ins/Unity4XC.xcplugin' not present in DVTPlugInCompatibilityUUIDs
  2015-12-17 13:25:56.421 xcodebuild[21997:5587012] Failed to load plugin at: /Users/Matan/Library/Application Support/Developer/Shared/Xcode/Plug-ins/Unity4XC.xcplugin, skipping.  Reason for failure: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]
  2015-12-17 13:25:56.422 xcodebuild[21997:5587012] [MT] PluginLoading: Required plug-in compatibility UUID F41BD31E-2683-44B8-AE7F-5F09E919790E for plug-in at path '~/Library/Application Support/Developer/Shared/Xcode/Plug-ins/RealmBrowser.xcplugin' not present in DVTPlugInCompatibilityUUIDs
  ** BUILD FAILED **
  
  
  The following build commands failed:
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/Upload.swift
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/ParameterEncoding.swift
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/Request.swift
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/ResponseSerialization.swift
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/Error.swift
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/Manager.swift
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/Response.swift
      CompileSwift normal arm64 /Users/Matan/Documents/ObjectiveC/onpi/SwinjectMVVMExample/Carthage/Checkouts/Alamofire/Source/Alamofire.swift
      CompileSwiftSources normal arm64 com.apple.xcode.tools.swift.compiler
  (9 failures)
  </code></pre>