there is macro to unavailable GetExecBind, but I don’t know why,
#if !UE_BUILD_SHIPPING // comment out for temp fix problem
bool Exec(UWorld* UInWorld, const TCHAR* Cmd,FOutputDevice& Ar);
/** @todo document */
FString GetBind(FKey Key);
FKeyBind GetExecBind(FString const& ExecCommand);
/** Execute input commands. */
void ExecInputCommands( UWorld* InWorld, const TCHAR* Cmd,class FOutputDevice& Ar);
#endif