CompileSwift normal i386 errors when build phoneRTC Demo

*\* BUILD FAILED **

The following build commands failed:
CompileSwift normal i386 /Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/Client/Plugins/com.dooble.phonertc/PhoneRTCPlugin.swift
CompileSwift normal i386 /Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/Client/Plugins/com.dooble.phonertc/PCObserver.swift
CompileSwift normal i386 /Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/Client/Plugins/com.dooble.phonertc/Session.swift
CompileSwift normal i386 /Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/Client/Plugins/com.dooble.phonertc/Config.swift
CompileSwiftSources normal i386 com.apple.xcode.tools.swift.compiler
(5 failures)
Error code 65 for command: xcodebuild with args: -xcconfig,/Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/cordova/build-debug.xcconfig,-project,Client.xcodeproj,ARCHS=i386,-target,Client,-configuration,Debug,-sdk,iphonesimulator,build,VALID_ARCHS=i386,CONFIGURATION_BUILD_DIR=/Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/build/emulator,SHARED_PRECOMPS_DIR=/Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/build/sharedpch
ERROR building one of the platforms: Error: /Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/cordova/build: Command failed with exit code 2
You may not have the required environment or OS to build this project
Error: /Users/Chen/Documents/Work/PhoneRTC/Code/Test/phonertc/demo/client/platforms/ios/cordova/build: Command failed with exit code 2
at ChildProcess.whenDone (/usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/cordova/superspawn.js:139:23)
at emitTwo (events.js:87:13)
at ChildProcess.emit (events.js:172:7)
at maybeClose (internal/child_process.js:818:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)