github代码，运行提示 没有查看的权限

2019独角兽企业重金招聘Python工程师标准>>> The file "UIMenuBarDemo" couldn't be opened because you don't have permission to view it. github上下载了代码，运行时出现如下提示： 选择 Build settings页面，找到 Compiler for C/C++/Objective-C 选择支持

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