我也遇到了同样的问题，试过了所有方法。不管出于什么原因，解决方案是我所有的证书都迁移到一个名为“microsoft_intermediate_certificates”的密钥链上。因为它可能发生在Xcode升级期间，我完全不知道为什么，但它可能会帮助到一些人。

我将微软钥匙串的所有内容移动到登录钥匙串，一切恢复正常。

昨天也遇到了同样的问题。现在，在签署到开发人员门户之后，对于每个无效的配置概要都有一个按钮“Renew”。更新和下载更新后的配置文件似乎都能正常工作，所以问题肯定解决了:)

更新:你可能需要联系苹果来获得一个“更新”按钮，或者他们删除了它——解决方案是下载它并添加到钥匙链，不需要更新。

我发现我需要拖动distribution_identity。我从开发人员程序门户网站上的“Certificates -> Distribution”页面下载的cer文件到密钥链访问程序中，然后这个错误就消失了。

我也遇到过同样的问题。这是因为证书的私钥在您的机器上不存在。

If you are now using a new machine and download the certificate from website: You can export the certificate from the old machine and then import on the new machine. If you share the developer account with someone: You ask the account owner to send you an invitation and become a team member of that account. Then you can create your own certificate from scratch. If you don't want to handle all these sh*t: Just revoke the certificate on website and delete the copy on your local machine. Then request a new one. This should be the ultimate way for solving such issue.

我也遇到了同样的问题:我第一次是在跑步时把证书下载到我的小MacBook上的。当我试图在iMac上安装证书时…然后我遇到了这一页上描述的问题。

和你们很多人一样，我花了几个小时把头发揪出来，然后我按照下面的步骤来解决它:

Close all your stuff except your webpage that should be logged into App Dev center. Open Xcode. Click WINDOW > ORGANIZER. Then click the Devices tab and select "Provisioning Profiles" on the left. That should bring up your provisioning profiles. Highlight one by one (if more than 1), right click and delete profile. Yes, just do it! Delete them all! (I kept making a new one after a new one trying to make the thing work.) From the first page you see after logging into the App Dev Center on the right side click "iOS PROVISIONING PORTAL" > (do not "launch assistant"). Instead click on the left side. Select CERTIFICATES. You will probably have just one line listed with your name/company - from there click on the right side REVOKE. Click OK to verify that's what you want to do. On the same page click DEVICES. Click the box next to your device you are trying to provision and click REMOVE SELECTED. Again click OK to verify. Wait about 2 minutes to let Apple do their thing. Now click on "HOME" that is on the left side navigation. Click "Launch Assistant" create a new app ID - call it whatever you want. Just make sure it's unique enough to know that's the one you just created because the others you've been messing with all day will not be deleted from Apples Dev Center. You should be able to follow the rest of the Assistant without troubles -- the main thing is you just had to delete your old provision profiles and start over.

好运！

以下是简单的步骤:

从计算机上的keychain(其中已经包含开发密钥)开始，创建一个证书请求。将请求上传到开发站点并创建证书。 使用证书创建配置文件。 下载配置文件并将其放到Xcode上。

现在所有的点都连接起来了，应该可以工作了。这对开发和推广都适用。