No valid iPhone code signing keys found in keychain

Question

So I downloaded to my Mac Pro the XCode 5 and Xamarin and created Single View Hello World application and excited to launch it through the simulator I run it and?

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Answer 1

I have resetted my Mac Book pro keychain and I encounter this issue.

When that happens, go in XCode and ensure that you are properly logged on into your Apple ID. If so, you should see your development group, you may have to click Join once again.

Read the following post, it explains everything.