Delete the developer certificate that does not have a private key. Delete the provisioning profile from your machine using go to folder (~/Library/MobileDevice/Provisioning Profiles) Then first check then uncheck the Automatically manage signing option in the project settings with selecting team. Sing in Apple developer account and edit the provisioning profile selecting all available developer certificates then download and add to XCODE. Select the provisioning profile and code signing identity in project build settings

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。

我取消勾选，然后勾选“自动管理签名”选项。这为我解决了问题。

Xcode 11

这是我得到的错误

配置文件“XXX”不包含签名证书“Apple Development: XXX (XXX)”。

现在Xcode 11自动创建了一个证书“Apple Development: XXX”，该证书对所有平台都有效

你只需要

访问https://developer.apple.com 转到配置配置文件 检查是否已选择此证书

对于那些应该继续使用不自动的原因

打开keyChain访问，看看是否有两个相同的认证，如果有两个或更多，只需删除到一个，它将工作:)

尝试直接从会员中心下载证书/配置文件，而不是从Xcode下载。

当我从会员中心手动下载它们时，它为我工作了。