网络模拟出错 about mthawkeye HOT 2 CLOSED

<NSURLSessionTaskMetrics: 0x281f18920>:
in NSURLSessionTaskMetrics:
	__metrics (__CFN_TaskMetrics*): nil
in NSObject:
	isa (Class): NSURLSessionTaskMetrics (isa, 0x1a1d07c2e75)

(lldb) ivars [__CFN_TaskMetrics new]
<__CFN_TaskMetrics: 0x283918cc0>:
in __CFN_TaskMetrics:
	_lock (struct os_unfair_lock_s): {
		_os_unfair_lock_opaque (unsigned int): 0
	}
	_ignoreNextRedirection (BOOL): NO
	_completed (BOOL): NO
	_UUID (NSUUID*): nil
	_identifier (unsigned long): 0
	_transactionMetrics (NSMutableArray*): nil
	_createTime (double): 0
	_firstResumeTime (double): 0
	_completeTime (double): 0
	_options (long): 0
	_schedulingTier (long): 0
	_currentTransactionMetrics (__CFN_TransactionMetrics*): nil
	_sessionMetrics (__CFN_SessionMetrics*): nil
in NSObject:
	isa (Class): __CFN_TaskMetrics (isa, 0x1a1d07c2385)