xcode version 7.1, ios Deployment Target 8.4, Localizations is :

and when a i run the app on simulator, i cant see any ui text in the app's UI, and one message will show out "[LanguagesManager setLanguage:forLogin:], Line: 106, preferredLang: zh-Hans-US
","[LanguagesManager setLanguage:forLogin:], Line: 126, -[LanguagesManager setLanguage:forLogin:] unsupported language : zh-Hans-US"
please help me, thanks a lot.
xcode version 7.1, ios Deployment Target 8.4, Localizations is :

and when a i run the app on simulator, i cant see any ui text in the app's UI, and one message will show out "[LanguagesManager setLanguage:forLogin:], Line: 106, preferredLang: zh-Hans-US
","[LanguagesManager setLanguage:forLogin:], Line: 126, -[LanguagesManager setLanguage:forLogin:] unsupported language : zh-Hans-US"
please help me, thanks a lot.