On 02/03/2017 16:58, Ken Dibble wrote:

> <snip > Of course, the way to handle this is to add code to test the

> size of the array before trying to iterate it, which I have now done.

> But I am still at a loss to understand how the error could occur.

What I usually do in situations like this is to put in lines of code to

write out to log files. You usually spot something unusual then and can

refine it or fix it.

Something like

if file('alerts.txt')

strtofile('My messages','mylogfile.log',.t.)

endif

You can then turn off the logging by removing the alerts.txt.

Peter

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