What does "Start/stop condition error" mean?

[SSteve]

All of a sudden (seemingly anyway), I get a "Start/stop condition error" when I click Record in my project. As far as I know, I haven't changed anything since the last time I was able to record data. The full text of the error is:

The timing of a signal used to evaluate a start/stop condition is incompatible with the timing of the signal being logged. If one signal has a sample period of 0, then all the other signals must also have a sample period of 0.

I can't make any sense out of this message. I'm pretty sure none of my signals has a sample period of 0.

I'm using Sweep to sweep through a number of frequencies in an IVI FGEN Standard Function step and a DAQmx Acquire step to read inputs from an NI USB-6259. I've attached the project.

[Christophe R]

I've run the project on my machine, and I did reproduce the error. I noticed that the error goes away if I remove the event detection in the recording options. Did you manage to run the project without error while doing event detection?

[SSteve]

Thanks. I removed that and now I can log again. I wish I knew how it got in there in the first place... 😐

-Steve