github代碼，運行提示 沒有查看的權限

2019獨角獸企業重金招聘Python工程師標準>>> The file "UIMenuBarDemo" couldn't be opened because you don't have permission to view it. github上下載了代碼，運行時出現如下提示： 選擇 Build settings頁面，找到 Compiler for C/C++/Objective-C 選擇支持

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