Hydratec Inc.

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AutoCAD Based Listing (Ribbon/Toolbar/Location)

Button: Start Autolist Error Type: DAO Server

Description:

When running AutoLIST, partway through you get the error;

DAO Server - Error RSOpen

Call from AutoList::LookupValueInMainsTable

SQLParams



Solutions:

Cause:

Autolist has encountered a fitting which doesn't exist
Solution:

Review the information in the error box to try to determine what type of pipe is having the issue (lines versus mains) and what the fitting is (the value after the = sign).

In this example above,

MainData tells us it's a Main pipe, so look for listing tags ending with the number 1

AbbrevName is "CPR-T'S".  This is a copper cross (a fitting which doesn't exist)

Even if you don't know all the abbreviated names, use common sense and the process of elimination to narrow down where the issue lies.
Updated: March 27, 2026, 9:35 a.m. Created: March 27, 2026, 9:35 a.m.