Error -200022: DAQmx Start Task.vi:7220001

[KMJ12314]

Error -200022: Resource requested by this task has already been reserved by a different task.

I don't understand why this error occurs. Please help me...

[ZYOng]

What are the models of your modules? You did not specify the output terminal of your counter task. It might be using the same digital line you configure for digital tasks.