这事让我非常担心。我刚刚下载了iPhone 3.0 SDK，但现在我无法让我的配置文件工作。以下是我的尝试:
删除所有配置配置文件 删除登录keychain 创建新的“登录”钥匙链，使它 默认的 创建一个新的证书签名请求 创建新的开发人员和分销渠道 证书在苹果开发者中心 下载并安装它们 下载并安装WWDR证书 创建一个新的配置文件和 双击它来安装
所有的证书报告都是有效的，但是Xcode仍然不能识别它们。接下来我该试试什么?
编辑:
我完全重新安装了Mac OS X，从一个新的安装安装了3.0 SDK，仍然有同样的问题。
当前回答
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.
其他回答
对于两个不同的配置概要文件(开发和分发)，有两个不同的证书。您必须在keychain中安装两个证书。在iPhone开发者计划入口:
证书->开发->下载 证书->分发->下载
双击这两个证书。之后，两个证书都必须出现在Keychain中。
你需要:
1)私钥和公钥。
你的钥匙链上有这个符号
2)由这些密钥的签名请求生成的证书
3)连接到该证书的配置文件
假设你换了电脑，想重新设置Xcode配置文件。你是怎么做到的?
Open Xcode, press ctrl + O to open the Organizer, and delete all provisioning profiles you might have installed already. Open keychain access, and create a signing request which you save to file (when you create the request, a private and public key is created in your keychain). Create/Update a certificate in the provisioning portal by sending apple this signing request Download and install the newly created certificate. Revoke your provisioning profiles and update them with the new certificate. Download and install the newly updated provisioning profiles.
在遇到最初发布的相同问题后，我终于在4次不同的尝试后让它工作了。所以这就是发生的事情，我不确定这是否是一个老问题(2009-07-09)，但我还是会发布，以防它对你有帮助。对我有用的是……也许对你有用…
重新开始，删除密钥链中旧的私钥、公钥和证书 完成整个过程，从证书颁发机构请求证书，获得一个新的公钥、一个新的私钥和一个新的证书。注意:当它工作时，我只有一个私钥、一个公钥和一个证书 创建一个新的配置文件(使用刚才创建的证书)，并将其放在Xcode的管理器窗口中。删除所有旧的废话。 运行它。
希望这能有所帮助。
对于开发证书，您只需创建一个新的证书并将其与配置文件匹配即可。但是对于分发，就像你要提交给苹果时，你不能这样做，必须使用团队代理创建的分发证书。问题是您需要计算机上的私钥。这很简单，但是，创建证书的团队代理复制私钥给你，下面是来自Apple的说明，我希望这对你有帮助。
It is critical that you save your private key somewhere safe in the event that you need to develop on multiple computers or decide to reinstall your system OS. Without your private key, you will be unable to sign binaries in Xcode and test your application on any Apple device. When a CSR is generated, the Keychain Access application creates a private key on your login keychain. This private key is tied to your user account and cannot be reproduced if lost due to an OS reinstall. If you plan to do development and testing on multiple systems, you will need to import your private key onto all of the systems you’ll be doing work on.
To export your private key and certificate for safe-keeping and for enabling development on multiple systems, open up the Keychain Access Application and select the ‘Keys’ category. Control-Click on the private key associated with your iPhone Development Certificate and click ‘Export Items’ in the menu. The private key is identified by the iPhone Developer: public certificate that is paired with it. Save your key in the Personal Information Exchange (.p12) file format. You will be prompted to create a password which is used when you attempt to import this key on another computer. You can now transfer this .p12 file between systems. Double-click on the .p12 to install it on a system. You will be prompted for the password you entered in Step 4.
我解出来了。 我不得不把。cer文件拖到KeyChain Access中。但请确保左上角的“Login”已被选中。否则，Xcode将无法看到证书，也就无法为你的代码签名。
苹果在这方面还有改进的空间....
