When opening an existing profile in the storm-sewer products, the following error message is generated: Index out of range. Must be non-negative and less than the size of the collection.
This error message can occur if the profile includes an inactive tap element. The solution for this would be to make the tap element active. Once the tap is active again, the profile will be able to open without an issue. You can locate the inactive taps by using the "Links Missing Nodes" query in Network Navigator.
Also make sure you are connecting valid nodes/elements to the links/pipes/conduits/. To understand which nodes can be connected to what types of links like pipes, channels, gutters, please look for topic connecting elements in the help documentation.
This issue will be fixed or have an updated notification in a future release of the storm-sewer products. The reference number for this is 561872.
How to Taps and Laterals work in the Storm-Sewer products?