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yannickl / Splitflap

A simple split-flap display for your Swift applications
http://cocoadocs.org/docsets/Splitflap
MIT License
1.08k stars 79 forks source link

fatal error #12

Open samsoncsyu7777 opened 5 years ago

samsoncsyu7777 commented 5 years ago

There is a fatal error here splitflapView.delegate = self Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value How can it be debugged?