运行子进程cordova时出错，但没有解释

Question

我正在使用ionic cordova build --prod --release for iOS 编译我的 ionic angular build，但出现此错误：

编辑：我用 --verbose 重新运行我的命令，这是我得到的结果：

This app does not have additional resource files defined
Prepared iOS project successfully
No scripts found for hook "after_prepare".
No scripts found for hook "before_compile".
Cannot read property 'toLowerCase' of undefined
TypeError: Cannot read property 'toLowerCase' of undefined
    at /Users/meghan/sandbox/Parks/TSP_Mobile_App/platforms/ios/cordova/lib/list-emulator-build-targets:54:45
    at Array.forEach (<anonymous>)
    at /Users/meghan/sandbox/Parks/TSP_Mobile_App/platforms/ios/cordova/lib/list-emulator-build-targets:52:44
    at Array.reduce (<anonymous>)
    at /Users/meghan/sandbox/Parks/TSP_Mobile_App/platforms/ios/cordova/lib/list-emulator-build-targets:50:57
    at Array.reduce (<anonymous>)
    at /Users/meghan/sandbox/Parks/TSP_Mobile_App/platforms/ios/cordova/lib/list-emulator-build-targets:45:28
    at _fulfilled (/Users/meghan/sandbox/Parks/TSP_Mobile_App/platforms/ios/cordova/node_modules/q/q.js:854:54)
    at /Users/meghan/sandbox/Parks/TSP_Mobile_App/platforms/ios/cordova/node_modules/q/q.js:883:30
    at Promise.promise.promiseDispatch (/Users/meghan/sandbox/Parks/TSP_Mobile_App/platforms/ios/cordova/node_modules/q/q.js:816:13)
[ERROR] An error occurred while running subprocess cordova.

        cordova build ios --release --verbose exited with exit code 1.

        Re-running this command with the --verbose flag may provide more information.
  ionic:utils-process onBeforeExit handler: 'process.exit' received +0ms
  ionic:utils-process onBeforeExit handler: running 2 functions +0ms
  ionic:utils-process processExit: exiting (exit code: 1) +36ms

这实际上是错误的全部，我找不到任何与之相近的东西。 有任何想法吗？

Answer 1

检查您的cordova ios版本如果它是les then 5.+然后使用删除您的构建和重建

ionic cordova build ios@latest