Ionic Cordova构建ios失败

嘿我正在尝试为ios构建我的离子cordova应用程序.
当我跑：
离子cordova build ios –release
我的构建失败了

** BUILD FAILED **


The following build commands failed:
CompileC 
/Users/blakemabe/Library/Developer/Xcode/DerivedData/MyApp-
fmpngedelpajbadyfzqoksexavsk/Build/Intermediates/MyApp.build/Release-
iphonesimulator/MyApp.build/Objects-normal/i386/FirebasePlugin.o 
MyApp/Plugins/cordova-plugin-firebase/FirebasePlugin.m normal i386 
objective-c com.apple.compilers.llvm.clang.1_0.compiler
(1 failure)
(node:12626) UnhandledPromiseRejectionWarning: Error code 65 for 
command: xcodebuild with args: -
xcconfig,/Users/blakemabe/Desktop/drive/drive_ionic/platforms/ios/cordova/b
uild-release.xcconfig,-workspace,MyApp.xcworkspace,-scheme,MyApp,-
configuration,Release,-sdk,iphonesimulator,-destination,platform=iOS 
Simulator,name=iPhone 6s 
Plus,build,CONFIGURATION_BUILD_DIR=/Users/blakemabe/Desktop/drive/drive_ionic/platforms/ios/build/emulator,SHARED_PRECOMPS_DIR=/Users/blakemabe/Desktop/drive/drive_ionic/platforms/ios/build/sharedpch
(node:12626) UnhandledPromiseRejectionWarning: Unhandled promise 
rejection. This error originated either by throwing inside of an async 
function without a catch block, or by rejecting a promise which was not 
handled with .catch(). (rejection id: 1)
(node:12626) [DEP0018] DeprecationWarning: Unhandled promise rejections 
are deprecated. In the future, promise rejections that are not handled 
will terminate the Node.js process with a non-zero exit code.

这个错误是由于同时拥有cordova-plugin-wkwebview-engine和更新的cordova-plugin-ionic-webview.

我修好了

ionic cordova plugin remove cordova-plugin-wkwebview-engine

然后我可以再跑一次：

ionic cordova run ios