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Undefined symbol on class I've used dozens of times
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Undefined symbol on class I've used dozens of times


  • Subject: Undefined symbol on class I've used dozens of times
  • From: Ken Tozier <email@hidden>
  • Date: Sat, 29 Nov 2008 01:18:16 -0500

Hi

I wrote a base64 encoder/decoder category on NSData and NSString and have been using it without problem for almost two years. Suddenly, today, when I tried to use it in a new project, Xcode is telling me four of the utility functions defined in the same file as the NSCategories are "undefined symbols." I have no clue why this suddenly started becoming a problem for Xcode, because as recently as a month ago, I created a project that used these categories and got zero "undefined symbol" errors. I've not done any Xcode or system upgrades since last using the class.

What could be causing this? The symbols are literally defined inside the file where Xcode says they aren't available. Anyone have an idea why Xcode isn't seeing functions in the exact file it's compiling?

Thanks for any help

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