问题仅在于最新的 XCode 4 (build 4C177 — iOS 5 beta 7).

The problems are only with the latest XCode 4 (build 4C177 — iOS 5 beta 7).

稍早版本的 XCode 4(内部版本 4C104 — iOS 5 beta 5)工作正常.

A slightly earlier version of XCode 4 (build 4C104 — iOS 5 beta 5) works fine.

和 Saran 一样，我尝试了 majkelx 和 OMH 的建议，但它们对我不起作用.

Like Saran, I tried the suggestions from majkelx and OMH and they did not work for me.

当我启动 build 4C177 并立即打开 Organizer 时，存储库最初显示为绿色(如 Saran 所述)并且历史记录可用.任何其他操作都会使它们变红.但是文本编辑器中的比较视图成功显示了与存储库的差异，以及修订号.

When I launch build 4C177, and immediately open the Organizer, the repositories initially show green (as Saran noted) and histories are available. Any other operation turns them red. But the comparison view in the text editor successfully shows diffs against the repository, with revision number.

因此，我得出的结论是，存储库设置正常并且身份验证实际上可以正常工作，但是 build 4C177 中的各种源代码控制功能存在问题.我建议安装较早的 XCode 4 并等待下一个版本.我向 Apple 提交了错误报告.

So, I conclude that the repositories are set up OK and authentication is actually working, but various source-control functionality in build 4C177 is buggy. I'd advise installing an earlier XCode 4 and waiting for the next release. I filed a bug report with Apple.