System.ArgumentException: Item has already been added. Key in dictionary: ” Key being added: “

Problem:

User encounters a .NET crash, “System.ArgumentException: Item has already been added. Key in dictionary: ” Key being added: ” “, while attempting to generate TerraScan trajectories from LIDAR Source strips.

Unhandled Exception Generating Trajectories: Item has already been added

Probable Resolution #1:

We suspect corrupted entities on the layer in question. Create a new trajectory layer and try creating the trajectories to the new layer.

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