Decoding spaces toolbox

I’m getting this error since long and I cant figure out what is the error about, in the tutorials this is what is exactly shown but it is not working for me.

I WANT TO ADD THE STREET NETWORK (which I have already done) AND THEN ADD BLOCKS TO THOSE STREETS AND FURTHER ON BUILDINGS. PLEASE CAN YOU HELP ME WITH THE ERROR SO I CAN CONTINUE FURTHER.

You can continue editing in the file attached itself and can send it back.
Waiting for the response at the earliest.

error- 1. Solution exception:Method not found: ‘Void NetTopologySuite.IO.WKTReader…ctor(GeoAPI.Geometries.IGeometryFactory)’

the files are attached within
THANK YOUANALYSIS.gh (5.1 KB)
ANALYSIS.3dm (7.6 MB)

I don’t have your plugin. But maybe try Elk. Never had problems with it. Really simple and there are some nice tutorials around.