我们在Xcode 10编译ios项目时，出现error: Multiple commands produce 'xxx'类似的错误，具体的错误代码如下所示：

error: Multiple commands produce '/Users/dxlawj/Library/Developer/Xcode/DerivedData/SinforChat-heyfvedklspziwftlxltyhkkvqbs/Build/Products/Debug-iphonesimulator/SinforChat.app/RGBColor.plist':

1) Target 'SinforChat' (project 'SinforChat') has copy command from '/Users/dxlawj/Documents/xcode/SinforChatGit/SinforChat/Contacts/Controller/Message/RGBColor.plist' to '/Users/dxlawj/Library/Developer/Xcode/DerivedData/SinforChat-heyfvedklspziwftlxltyhkkvqbs/Build/Products/Debug-iphonesimulator/SinforChat.app/RGBColor.plist'

2) Target 'SinforChat' (project 'SinforChat') has copy command from '/Users/dxlawj/Documents/xcode/SinforChatGit/SinforChat/Message/Model/RGBColor.plist' to '/Users/dxlawj/Library/Developer/Xcode/DerivedData/SinforChat-heyfvedklspziwftlxltyhkkvqbs/Build/Products/Debug-iphonesimulator/SinforChat.app/RGBColor.plist'

错误问题分析：

之所以我们的xcode在编译时出现上方的错误，时因为我们的Bundle Resource资源文件里面导入了两个“RGBColor.plist”文件，我们只需要删除一条重复的plist文件即可，在Build Phases里面找到重复的文件，如图所示：

删除掉第一条RGBColor.plist（Message/Model）即可，只要没有重复的资源文件，就不会报“error: Multiple commands produce”错误了。