我用

链接的框架和库

将框架添加到Workspace文件夹的顶部。讨厌鬼。

我发现构建设置中的导入路径是错误的自定义(MySQL)模块。把它指向正确的方向后，信息就消失了。

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.

对我有效的是另一个问题的解决方案。关闭Xcode，重新打开项目作为工作空间。转到项目文件夹并打开.xcodeworkspace文件。 一旦你打开工作区(而不是项目)，Pods应该作为顶级项目出现在project Navigator中。

如果是周五下午或凌晨1点之后:

打开xcodeproj而不是xcworkspace将导致如下错误…

我在xcode 10.3中也遇到了类似的问题。xCode无法识别pod中的文件。这里我是这样解决的:

进入构建阶段 用库链接二进制文件 从pods中添加框架(在我的例子中是epsignature . framework) 清理和构建项目

错误消失了。