flutter error: Multiple commands produce '/Users/****/build/ios/Debug-iphonesimulator/Runner.app/...

 error: Multiple commands produce '/Users/mac/code/***build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework':
    1) Target 'Runner' has copy command from '/Users/mac/code/***/.ios/Flutter/engine/Flutter.framework' to
    '/Users/mac/code/***/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: The iOS Simulator deployment target is set to 7.0, but the range of supported deployment target versions for this platform is 8.0 to 12.2.99. (in target 'Flutter')
    warning: The iOS Simulator deployment target is set to 5.0, but the range of supported deployment target versions for this platform is 8.0 to 12.2.99. (in target 'TMCache')
    warning: The iOS Simulator deployment target is set to 6.0, but the range of supported deployment target versions for this platform is 8.0 to 12.2.99. (in target 'Masonry')
    warning: The iOS Simulator deployment target is set to 5.0, but the range of supported deployment target versions for this platform is 8.0 to 12.2.99. (in target 'SDWebImage')
    warning: ignoring duplicated output file: '/Users/mac/code/gmalpha_flutter/build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework' in shell script build phase '[CP] Embed Pods
    Frameworks'. This warning represents an extremely serious project misconfiguration and will likely cause some shell scripts in your project to be skipped entirely, leading to other build failures or
    missing files in the build directory. This will be a hard error in the future. (in target 'Runner')
    note: Using new build systemnote: Planning buildnote: Constructing build description