ERROR: At least one variable must be used for a datapoint

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#1 ERROR: At least one variable must be used for a datapoint

Status: open

Owner: nobody

Labels: None

Priority: 5

Updated: 2011-12-15

Created: 2011-12-15

Private: No

I get the above error after installing. I select the datapoint from the table-form. I don't known whats wrong.

Using Ubuntu 10.04 LTS
Apache/2.2.14 (Ubuntu)
wvnetflow-1.05