NullReferenceException: Object reference not set to an instance of an object
at HuaweiMobileServices.Utils.EnumerableUtils.Map[T,U] (System.Collections.Generic.IList`1[T] list, System.Func`2[T,TResult] action) [0x00008] in <47283700da774484997e632d880eeb22>:0
at HuaweiMobileServices.Utils.AndroidJavaObjectExtensions.AsJavaStringList (System.Collections.Generic.IList`1[T] list) [0x00000] in <47283700da774484997e632d880eeb22>:0
at HuaweiMobileServices.IAP.ProductInfoReq.set_ProductIds (System.Collections.Generic.IList`1[T] value) [0x00000] in <47283700da774484997e632d880eeb22>:0
at IapManager.ObtainProductInfo (System.Collections.Generic.IList`1[T] productIdConsumablesList) [0x0003f] in <86d6d269a538435cb04dcb92326f790b>:0