出现这种情况是因为配置配置文件无法找到它所链接的证书的文件。

修复:

检查哪个证书链接到您的配置配置文件 在Apple Developer仪表板的Certificates, Identifiers & Profiles部分点击编辑你的配置文件 从仪表板下载证书 双击该文件将其安装到您的钥匙链中 将文件拖到Xcode中以确保它是链接的

错误现在应该消失了。

对于那些仍然在Xcode8中与这个问题作斗争的人。对于我来说，这是一个重复的证书问题，这是我解决它的方法:

我读了尼克的回答，然后开始了我的调查。我检查了我的特定案例中的所有密钥和证书(在~/Library/Keychains/System.keychain中)。

When I opened the file, I found that I had two iPhone Distribution Certificates (that was the certificate that Xcode was requesting me), one with the iOS Distribution private key that I have been using since the beginning, and another iPhone Distribution Certificate which its private Key had a name (iOS Distribution:NAME) that wasn´t familiar for me. I deleted this last certificate, started Xcode again and the problem was gone. xCode wasn´t able to resolve that conflict and that´s why it was giving signing certificate error all the time.

检查你的钥匙链，也许你有一个重复的证书。

值得注意的是，自动签名每次都失败了，直到我手动删除了本地配置文件: ~ /图书馆/ MobileDevice /配置概要文件

在这之后，自动签名工作得很好，它从苹果服务器上获得了正确的配置文件。

这只影响了一些构建，特别是那些我手动为手表应用程序创建配置文件的构建。

检查您的钥匙串，查找缺少私钥的身份。我为同一个团队安装了多个分发证书，其中一个缺少私钥。Xcode只检查密钥链中第一个匹配的标识，并自动使用这个标识，而不是包含私钥的标识。

删除没有私钥的匹配标识使Xcode再次检测到正确的标识。

我也有同样的问题，原因是佩妮。在生成设置中选择了错误的配置文件和证书。我几天前才这么做过。所以，你不需要在xcode中启用“automatic”。在执行此操作之前，请检查构建设置中的配置文件。

此问题是由于您的配置文件中的证书中的私钥与您的密钥链中的私钥不匹配。我解决这个问题的方法是

delete all iPhone Developer certificate in keychain. delete all certificate in apple account. using xcode "Manage Certificates" to add certificate, sometime you still have certificate in your Mac, but I do not know where it is for now, and if added successfully, your apple account will display that certificate too, and then you can create your profile with that certificate and download ... goto 5 if you use "Manage Certificates" can't add certificate, you can create a new certificate, and do remain steps. finish.

Xcode版本8的代码签名问题也是如此。