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These are the errors that are currently present in my project after I downloaded the beta version of Xcode 9.

Error messages

This directly connects to this post. In which similar problem is solved. I had this problem as well originally and fixed it by following the accepted solution. However, that did not fix these other error messages that I am getting.

What is causing these? Are they a problem? How can I prevent them?

Paulo Mattos
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joshLor
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1 Answers1

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From your stack trace, it looks like both calls are Firebase related. As such, try upgrading to the latest Firebase version 4.x to see if those go away.

Please see this question if you may need some help when doing so.

Update. Actually, it looks like this is a known issue in Firebase v4 iOS SDK :-(

Paulo Mattos
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  • Yeah, I noticed that as well, however, I already have Firebase 4. – joshLor Jun 25 '17 at 17:51
  • Ok, I think I confused Objectice-C vs Swift Firebase classes naming ;) Anyway, can you show us the code triggering such errors? – Paulo Mattos Jun 25 '17 at 17:55
  • That is one of my problems I don't know what code is actually triggering these errors. – joshLor Jun 25 '17 at 17:56
  • According to the GitHub *issue* I just linked, these calls may be coming from *within* the Firebase iOS SDK — and these may even be false positives, so you may be good for now ;) – Paulo Mattos Jun 25 '17 at 18:15