CocoaPods在GitHub上的wiki在他们的常见问题解答中有正确的答案:

Go to Product > Edit Scheme Click on Build Add the Pods static library, and make sure it's at the top of the list Clean and build again If that doesn't work, verify that the source for the spec you are trying to include has been pulled from github. Do this by looking in <Project Dir>/Pods/<Name of spec you are trying to include>. If it is empty (it should not be), verify that the ~/.cocoapods/master/<spec>/<spec>.podspec has the correct github url in it. If still doesn't work, check your XCode build locations settings. Go to Preferences -> Locations -> Derived Data -> Advanced and set build location to "Relative to Workspace".

我把我的pod列表在Podfile中划分为不同的目标，比如:

target :ABC do
  pod 'KissXML', '~> 5.0'
  pod 'libPhoneNumber-iOS', '~> 0.7.2'
end

target :ABCTests do
  pod 'OCMock', '~> 2.2.1', :inhibit_warnings => true
end

然后安装了吊舱

这创建了一个新的库libPods-ABC。我的二进制文件必须链接到的A。但错误是它没有删除之前的库，即libPods.a。

解决方案:删除libPods库。a来自Link Binary With Libraries的构建阶段。

我想念libPods。目标中的A，所以要做的第一件事是将它添加到链接的框架和库中。

接下来，Product -> Build for -> Profiling(或在添加libPods之前)。A，如果你完全错过了它)

最后在构建阶段检查你的Copy Pods资源脚本(如果它和你的第二个目标相同-有时它取决于Podfile和它的目标)。然后您就可以成功构建了。

请确保打开的是.xcworkspace，而不是.xcodeproj

我有同样的问题，当我编辑Podfile添加目标，我是使用没有目标之前。

子文件

target 'xxxx' do

pod 'xyz'
pod 'abc'    

end

在四处闲逛后，我发现在目标属性>>常规选项卡>>链接框架和库部分，有新的libPods-xxxx。a和旧的libPods.a

我只是删除了libPods。A，一切都很好。

我发现选择“查找隐式依赖项”(在product / edit scheme下)将解决这个问题，而不必将pod添加为目标。