"_OBJC_CLASS_$_DBAccess", referenced from:

Trying to build my program and getting the following error. Don't see anything obvious. All my import statements seem correct:

Undefined symbols: "_OBJC_CLASS_$_DBAccess", referenced from: objc-class-ref-to-DBAccess in LocationsViewController.o ld: symbol(s) not found collect2: ld r开发者_如何转开发eturned 1 exit status

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This sort of problem usually means that the linker isn't finding the class (if your imports are wrong you only get a lexing warning).

Check to make sure that your project is properly linked to whatever uses DBAccess and that DBAccess.m/h is included in the output.