Error message when trying to change the geometry of a specific object/feature

Problem:

The geometry of a certain object/feature cannot be changed. E. g. a vertex cannot be inserted or moved or a line cannot be split or ...

An error message similar to this one appears:

The feature geometry could not be modified.
The node has invalid geometry (i.e. no point or invalid position).
[edge class = ..., oid = ...; FROM junction class = ..., oid = ...; TO junction class = ..., oid = ...]

The problem is usually limited to a few objects/features.

Cause:

From the keywords 'node', 'edge' and 'junction' you can already tell that this is a problem with the geometric network. When and how this problem was caused can hardly be traced in retrospect. In order to be able to continue working at this point, it is necessary to repair the geometric network.

Solution:

To do this, Esri provides you

• with Verify Network tools and commands
  in the 'Geometric Network Editing' toolbar
• as well as with the batch-oriented tools
  • Find Disconnected Features in Geometric Network and
  • Verify And Repair Geometric Network Connectivity
  in the 'Geometric Network' toolset in the 'Data Management' toolbox from the Geoprocessing.

The functions from the toolbar and from the toolbox differ not only in terms of output (selection in the map versus listing in a log). The functions from the toolbox are also more robust and better maintained by Esri. If the functions from the toolbar should ever fail, then you still have a chance with the functions from the toolbox.

All of the above functions offer "global" mode for the complete dataset and "local" mode for a section.
By default they are set to review, automatic repair can be switched on.

Background:

A geometric network is stored in multiple tables. For each object/feature there is a corresponding network element in the geometric network, which is identified by its EID (Element ID).

In rare cases it happens that a feature loses its connection to the geometric network or that the logical connection of a feature to its companion is lost.