在Xcode 10.1中，我的解决方案是在文件菜单中的工作区设置中改变构建系统。它默认设置为New Build System，将其更改为Legacy Build System，这就成功了。

为了它的价值(我是使用Xcode 7.2/Swift 2的新手)，但我注意到，只要从项目目录中的库中拥有. Swift文件，就可以自动地访问它，而不需要using语句。

示例:我正在使用SwiftyJSON，在项目中拥有SwiftyJSON.swift文件就是我所需要的。using语句实际上给了我“没有这样的模块”错误，并把它解决了，它工作得很好。

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.

我也遇到过这个问题。对我来说，修复是两个项目之间的存档方案不匹配。我有一个xcworkspace与框架项目和应用程序项目。问题在于，在我的应用程序的存档方案中，我使用了与框架的存档方案不同的构建配置。我把两个构建配置都设置为发布，这就解决了这个问题。

在我的例子中，问题只是一些使用框架的项目在框架的部署目标iOS版本之前有一个部署目标iOS版本。一旦我更改了框架部署目标iOS版本，错误就消失了。

我刚刚删除了我的cocoapod。然后，我做了一个豆荚安装来移除它。然后，我只是把它添加回我的podfile，并重新安装它。这让它成功了。不知道为什么。