None of these issues solved this for me. The problem in the end was pretty easy. It looks like its a pretty major Xcode bug which I have logged the problem and fix under Apple bug: 29820370. If you are struggling (as it seems like there are several pages of problems similar to this ) then it would be great if you can raise a bug on bug reporter: https://bugreport.apple.com/ and reference the bug I raised to gain visibility. I want to make Xcode back into the pleasure that it was before - and this is something I am sure Xcode should have fixed itself.

下面是解决方案: 1. 打开钥匙串-去苹果全球开发者证书。 2. 双击它 3.将权限级别从“始终信任”更改为使用“系统默认” 4. 保存并关闭 5. 重新启动Xcode，清理并构建项目，它应该消失了。

下面是正确设置的截图: 希望这能有所帮助!

如果你不小心重置了你的钥匙链，这可能是由于在钥匙链中丢失了苹果证书。我遵循这个方法来解决我的问题。

我遇到了同样的问题，并通过重新下载WWDR(苹果全球开发者关系认证机构)来解决。 从这里下载:http://developer.apple.com/certificationauthority/AppleWWDRCA.cer

唯一对我有用的是:

目标>构建阶段> [CP]嵌入Pods框架 取消勾选“在生成日志中显示环境变量”和“仅在安装时运行脚本”

Xcode 11: 构建阶段->嵌入框架

如果你使用的是Xcode 11，确保你在“目标设置-常规”下的“框架”、“库”和“嵌入内容”中添加了框架。将嵌入状态从-“不嵌入”更改为“嵌入&签名”

对我来说，由于某种原因xCode(到目前为止12.5)决定我的通知服务扩展目标不应该有正确的框架路径。我怀疑这发生在我从xCode 12.1更新到12.5之后。

所以我得到了与我的一个内部框架相关的相同错误。要解决这个问题，请执行以下操作:

go to Project's General Tab Select your target (in my case it was Notification Service Extension Target) Make sure that Framework and Libraries section contains your missing framework. I've left it Embed Without Signing in my NSE Target, but it is also was added with Embed & Sign to my primary app target Keep your target selected and switch to Build Settings tab There in a search bar enter LD_RUNPATH_SEARCH_PATHS (make sure that All possible settings will be displayed and not just Basic) You will see Runpath Search Paths and it was empty for me. Add 3 following values there: $(inherited) @executable_path/Frameworks @executable_path/../../Frameworks

这对我很有帮助。