Sazzad Hissain Khan的3分。选项添加相同的“构建配置”在应用程序的框架，而不是在应用程序解决了我的“未知模块”问题。

这篇文章帮助我了解如何添加新的构建配置，因为进入编辑器->添加配置是灰色的

在Xcode中添加构建配置

对我来说，解决同样问题的方法是相对于工作空间目录设置派生数据位置，而不是保持默认值。 去xcode的首选项。转到首选项中的位置选项卡，并将派生数据设置为相对。 希望能有所帮助。

有几个潜在的错误配置可能会导致这个问题，

Please confirm that you have opened the .xcworkspace but not .xcodeproj file. Also make sure you have build Social first before you build TriviaApp. Make sure that iOS Deployment Target is set same for all modules with main app. For example is TriviaApps deployment target is set to 9.0, Socials deployment target also need to be set to 9.0. Make sure your main module (TriviaApp) and your used framework (Social) have same set of configurations. i.e. If your Project has three configurations, Debug, Release, ReleasePremium than your Social framework also need to have three configurations Debug, Release, ReleasePremium. Also make sure that the archive configuration is set same for both TriviaApp and Social. i.e. if your TriviaApps archive scheme is set to ReleasePremium, your Socials archive scheme also need to be set into ReleasePremium. Please assure that you do not need to import Social in each .swift files when its already added in the Bridging-Header.h. In case of issue came from Pod files, make sure you have uncommented #use_frameworks! into use_frameworks! from you Podfile. Sometime re installing pod works if Social has any dependency on pods. If none of the above steps works, delete your derived data folder and try re building.

大多数其他答案都是针对CocoaPods或迦太基用户的。如果你不使用这些，但只是想在你的项目中删除一个框架并链接它，它将需要在框架搜索路径中。

系统框架已经在搜索路径(即/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/ sdk/ iPhoneOS${version}.sdk/ system /Library/ frameworks /)。如果您试图使用的文件不在此路径中，则需要将它们的路径添加到Build Settings中的FRAMEWORK_SEARCH_PATHS中。

为什么XCode不知道在哪里找到它，即使你左边面板上的框架在右边面板的标识和类型中列出了一个位置和完整的路径?那我不知道。

有时豆荚分解，然后豆荚安装也帮助我。

在我的例子中，我只需要重新加载项目。我使用命令行克隆我的项目，但它没有正确安装子模块。为了补救，我通过XCode克隆了项目，一切正常。只是要确保先备份所有更改。