Multiple commands produce

重新运行cocoapods后程序,程序运行报一下错误

Multiple commands produce '/Users/shilei/Library/Developer/Xcode/DerivedData/TraditionalChineseMedicine-hdfvehcpsglccpgnhtqakznsmuro/Build/Products/Debug-iphoneos/TraditionalChineseMedicine.app/Assets.car':

1) Target 'TraditionalChineseMedicine' (project 'TraditionalChineseMedicine') has compile command with input '/Users/shilei/Desktop/DeviOS/TraditionalChineseMedicine/Supporting Files/Images.xcassets'

2) That command depends on command in Target 'TraditionalChineseMedicine' (project 'TraditionalChineseMedicine'): script phase “[CP] Copy Pods Resources”

因是Xcode 10 默认使用的build system是New build system，与Xcode9不同导致。

第一种方法 不修改build system

分析build error 日志，错误发生在Copy Pods Resources，而且与output有关，应该是使用了cocoapods导致的，尝试删除该项目target-Copy Pods Resources-Output Files，成功解决问题。

在copy pods 下面的output files删除对应的文件

第二种方法 修改build system

在Xcode菜单栏 -> File -> Workspace Setting，将build system修改为legacy build system，然后clean后编译。

选择legacy build system