in Mopub-SDK for iOS.there is an error in calling "mp_safe_block" method.
Macro definition:
// Macros for dispatching asynchronously to the main queue
#define mp_safe_block(block, ...) block ? block(__VA_ARGS__) : nil
Called as:
mp_safe_block(complete, NSError.sdkInitializationInProgress, nil);
Error message:
Left operand to ? is void, but right operand is of type 'nullptr_t'
maybe this error has nothing to do with the SDK itself. how to fix it ?
PS: that sdk code run correctly in a new xCode project created by myself. but there is an error in a Xcode-project builded by MMF2(clickTeam fusion) and this xCode-project version is too old. I updateded setting of Xcode.but it still an error.