topic Adding Trace Locations - No valid starting locations found ERROR in ArcGIS Utility Network Questions

Adding Trace Locations - No valid starting locations found ERROR

AneteZvaigzneLV — Mon, 06 Dec 2021 13:32:36 GMT

Hello, I struggle with understanding Utility Network. It might be possible that it is easier to teach a dog to ride a bicycle.

I am going through the Tasks provided in Water Distribution Utility Network Foundation, with Water Distribution Editor map. I would like to Locate Leak Location, but I don't get past Adding Trace Locations. The option to Apply added starting points is disabled. I haven't changed anything in the Project File. Network topology is enabled and validated, there are no Dirty areas. I am working on ArcGIS pro 2.9.

It would be highly appreciated if anyone would help me with this confusion.

Cheers!

Re: Adding Trace Locations - No valid starting locations found ERROR

JoelSmith3 — Mon, 06 Dec 2021 15:37:44 GMT

Hello Anete,

I have seen this before where the trace features path is broken:

Can you check for a valid path and if it is broken set the source to the default geodatabase here:

I hope that helps,
Joel

Re: Adding Trace Locations - No valid starting locations found ERROR

Brownschuh — Fri, 11 Feb 2022 15:11:44 GMT

Ran into this exact issue today with the Water Distribution Utility Network Foundation template and going through the Leak Location Task. Remapping the broken paths fixed the issue.

Re: Adding Trace Locations - No valid starting locations found ERROR

se2539 — Tue, 22 Mar 2022 15:40:47 GMT

Wanted to follow-up on this thread as I am now testing the Sewer Utility Network and am encountering the same error as before (ERROR 001785: No valid starting locations found.) Thinking it might be the broken path issue, I checked that but to no avail. Paths look good.

Any idea what else could be throwing this error?

Re: Adding Trace Locations - No valid starting locations found ERROR

ModernElectric — Thu, 25 Aug 2022 17:57:11 GMT

Wanted to follow-up with this. I am having this same issue and starting to get really frustrated with this error. My Starting Points and Barriers path to the GDB and Utility Network is just fine. I have gone thru and Disabled the Topology and enabled it back again. One of the contributing factors that this is happening is when I append a large amount of new data and then try to trace the network to update the subnetwork. This is when I have been getting this error. I have duplicated the error multiple times after going back to restoring the GDB from one of my back-up copies. Any ideas????

Re: Adding Trace Locations - No valid starting locations found ERROR

RobertKrisher — Thu, 25 Aug 2022 21:23:17 GMT

Check the parameters in your tool. I've found that if i open the dialog with something that doesn't auto-populate those parameters (like a subnetwork trace) then switch over to something that does require those parameters (like an upstream trace) that the tool doesn't automatically pick up the starting locations / barriers from my map.

You can run into the same issue if you're building a python script or a model to automate tracing tasks.