getdata giving "An unexpected error occurred."

2011 8 9
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Occassionally I'll get an error when I make a getdata call. Here is the sample code and the error it throws.
Code:
[DAQ_data, DAQ_time] = getdata(ai, ai.SamplesAcquired);
Error:
??? An unexpected error occurred.
Error in ==> analoginput.getdata at 199
[varargout{1:nout}]=getdata(uddobj,samples,dataformat);
Anyone seen this before and have any recommendations on fixing it?
Thank you!

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Sean de Wolski
Sean de Wolski 2011-8-9
Everything's plugged in and has been plugged in since the beginning of the ML session?
Adam
Adam 2011-8-9
Yep -- I'm doing multiple getdata calls in the same ML session/script.
Adam
Adam 2011-8-10
Between getdata calls the only calls I'm making to my ai object are start() and stop().

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Adam
Adam
2011-8-9

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