HoffmanPavleyRankedShortestPathAlgorithm.ToString()

[jnyrup]

The ToString in HoffmanPavleyRankedShortestPathAlgorithm is implemented as

public override string ToString()
{
    return String.Format("{0} at {1} {2}", this.Weight, this.DeviationEdge);
}

This will obviously throw an exception as the number of arguments doesn't match the expected number in the format string.

As I'm not sure what the intended format is, I haven't submitted a PR to fix this.

[KeRNeLith]

In my fork I moved to string interpolation keeping the 3 args in a way similar to debugguer display (see here).