Flutter运行出现iOS错误：Multiple comman

Xcode中运行flutter的iOS项目出现的错误信息：

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:-1: Multiple commands produce 'Flutter.framework':

1) Target 'Runner' has copy command from '/Users/yuanzhiying/cocos-embed-flutter/frameworks/runtime-src/flutter_module/.ios/Flutter/engine/Flutter.framework' to '/Users/yuanzhiying/Library/Developer/Xcode/DerivedData/Runner-eptbkhpzfgbvcachmhewftmvxjdp/Build/Products/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework'

2) That command depends on command in Target 'Runner': script phase “[CP] Embed Pods Frameworks”

参考文章：MULTIPLE COMMANDS PRODUCE '/BUILD/IOS/DEBUG-IPHONESIMULATOR/RUNNER.APP/FRAMEWORKS/FLUTTER.FRAMEWORK
解决办法一：
Xcode中打开file-workspace settings，build system改为legacy build system，再次运行，即可成功运行。

WX20190813-124231@2x.png

解决方法二：
删除对应的Flutter.framework：

WX20190813-124701@2x.png