Error when converting to kohonen: "Only user.weights of zero given"

[Tenceto]

I tried to run the example provided here but when it comes to the part when the SOM is converted to kohonen class, the following error appears:

Error in map.kohonen(structure(list(codes = result$codebook), class = "kohonen"),  : 
 Only user.weights of zero given

I'm using Rsomoclu 1.7.2. Is there a way to fix this?

[xgdgsc]

I tested with latest Rsomoclu 1.7.5.3 and kohonen 3.0.8 and it works.