几天前我也遇到了同样的错误。下面是我解决这个问题的方法:

错误是“模块未找到”

Create Podfile in your root project directory Install cocoapods (a dependency manager for Swift and iOS projects) Run pod install Go to Project Build Settings: Find Objective-c bridging Header under Swift compiler - Code Generation (If you don't find Swift compiler here, probably add a new Swift file to the project) Drag and drop the library header file from left side to bridging header (see image attached) Create a new bridging header file: e.g TestProject-Bridging-Header.h and put under Swift Compiler → Objective-C Generated Interface Header Name (ref, see the image above) In TestProject-Bridging-Header.h file, write #import "Mixpanel/Mixpanel.h" In your Swift file the code should be: Import Mixpanel (i.e name of library)

这是所有。

对我来说，这发生在RxSwift上，问题是我在Podfile中将其修复为3.0.0。移除版本限制并更新pods将其升级到3.1.0，从而修复了它。

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。

我在使用Cocoapods和Swift时也遇到了同样的问题。我没有注意到Podfile中的以下行:

# Uncomment this line if you're using Swift
# use_frameworks!

所以，我所要做的就是把它改成:

# Uncomment this line if you're using Swift
use_frameworks!

.．.啊，它起作用了:)

在我的情况下，项目上的swift 4库没有编译，所以不可能找到它们并导入。 解决方案是将cocoapods库的编译版本设置为swift 3.2

几天前我也遇到了同样的错误。下面是我解决这个问题的方法:

错误是“模块未找到”

Create Podfile in your root project directory Install cocoapods (a dependency manager for Swift and iOS projects) Run pod install Go to Project Build Settings: Find Objective-c bridging Header under Swift compiler - Code Generation (If you don't find Swift compiler here, probably add a new Swift file to the project) Drag and drop the library header file from left side to bridging header (see image attached) Create a new bridging header file: e.g TestProject-Bridging-Header.h and put under Swift Compiler → Objective-C Generated Interface Header Name (ref, see the image above) In TestProject-Bridging-Header.h file, write #import "Mixpanel/Mixpanel.h" In your Swift file the code should be: Import Mixpanel (i.e name of library)

这是所有。