000257 : Cannot open event table
Description
An error has occurred while opening the event table. Likely causes are invalid event table properties.
Solution
Ensure that you have specified the correct event properties. That is,you must specify the correct Route Identifier field, event type, and measure field or fields. You must also specify the correct number of measure fields for your event type. Point events have one measure field, whereas line events require two.
11/18/2010