labview 错误-200329发生于DAQ助手

错误-200329发生于DAQ助手
可能原因:Measurements: An error has occurred while attempting to configure the device for an analog input acquisition.If an external master timebase is being used, make sure the source is connected and generating an appropriate clock. Otherwise, contact National Instruments Technical Support.在数据采集时候遇到的问题通过Measurement & Automation创建采集任务，或者通过labview编程时都遇到同样的问题！