ios - duplicate symbol _OBJC_CLASS_$ in paypal -

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i getting error in paypal sdk 2.8.2 .

duplicate symbol _objc_class_$_paypalpayment in:
...libpaypalmobile.a(paypalpayment.o)
...libpaypalmpl.a(paypalpayment.o) duplicate symbol _objc_metaclass_$_paypalpayment in: ...libpaypalmobile.a(paypalpayment.o) ...libpaypalmpl.a(paypalpayment.o) ld: 2 duplicate symbols architecture x86_64 clang: error: linker command failed exit code 1 (use -v see invocation)

when removed -objc in other linker flags error solved . after app crashes on pay button log :

-[paypalpaymentviewcontroller paypalservicemanager]: unrecognized selector sent instance 0x7ff2b5a38240

i have spent whole day solve helpfull.

any can solve day.....


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