I'm using nwhierarchy as part of Thomas Grund's nwcommands package. I am using something like this command:

nwhierarchy foo, context(both) type(euclidean) linkage(singlelinkage)

I get a 3499 error message stating:
<istmt>: 3499 euclidean_dissimilarity() not found

-nwsummarize foo- returns information about the network in question. Does anyone have a good reason why this is happening? I know it has something to do with mata, and something to do with the nwdissimilar command (nwhierarchy is a combination of the nwdissimilar and cluster linkage commands).