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!

我在Xcode 13 beta版中使用uniformtypeidentifier .framework遇到了这个问题。该应用程序无法在低于13的iOS版本上运行。 下面的方法解决了这个问题:

去目标->构建阶段->链接二进制与库->添加框架->添加状态为“可选” 以上方法对我来说非常有效!希望这能有所帮助!

我只在真正的设备(iPhone SE)上运行时遇到过这个问题。在模拟器项目工作如预期。

我尝试了所有的修复从这个线程和从这里。 这些对我都没用。

对我来说，重启iPhone后问题就解决了。

我做了:

清洁构建文件夹， 干净的衍生数据， 从设备上删除app 重新启动设备

最终成功了。：）

如果其他解决方案都失败了，不要忘记尝试一下。

I found that this issue was related only to the code signing and certificates not the code itself. To verify this, create the basic single view app and try to run it without any changes to your device. If you see the same error type this shows your code is fine. Like me you will find that your certificates are invalid. Download all again and fix any expired ones. Then when you get the basic app to not report the error try your app again after exiting Xcode and perhaps restarting your mac for good measure. That finally put this nightmare to an end. Most likely this has nothing to do with your code especially if you get Build Successful message when you try to run it. FYI

[Xcode 11 +]

唯一要做的就是将框架添加到目标应用程序的General选项卡中的General->Frameworks, Libraries And Embedded Content部分。

确保你选择了“嵌入&签名”选项。

[Xcode v6 -> Xcode v10]

唯一要做的就是将框架添加到目标应用程序General选项卡的Embedded binaries部分。

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