所以问题出在 podspec 文件中.Parse 团队针对 Parse、ParseFacebookUtils、ParseCrashReporting 将其更新至 1.7.5.3，现在一切正常.

So the problem was in podspec file. Parse team updated it to 1.7.5.3 for Parse, ParseFacebookUtils, ParseCrashReporting and now everything works great.

现在只需运行 pod update 即可解决问题.

Now simply running pod update should fix the issue.

这是官方开发者群组的原帖.