When I want to debug the application in MacOs environment, it throw such error:

Multiple commands produce '/build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework

1. Target 'Runner' has copy command from '/ios/Flutter/Flutter.framework' to '/build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework'
2. That command depends on command in Target 'Runner': script phase “[CP] Embed Pods Frameworks”
   warning: ignoring duplicated output file: '//build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework' (in target 'Runner')
   note: Using new build systemnote: Planning buildnote: Constructing build description

Mac 10.14 Beta
Xcode 10 beta

How to fix it? Thanks a lot