URBAlertView
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Undefined symbols for architecture armv7
I added URBAlertView.h and URBAlertView.m at first working fine after two days again I checked automatically I got these errors.
Undefined symbols for architecture armv7: "_va_start", referenced from: -[URBAlertView initWithTitle:message:cancelButtonTitle:otherButtonTitles:] in URBAlertView.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation)