Nucleus counter modes not functional

[matiasekstrand]

Working with 8 bit grayscale images, I can't get several nucleus counter modes to work.

k-means clustering gives an error of:
Unrecognized command: "k-means Clustering"

Mixture modeling gives the error:
Unrecognized command: "Mixture Modeling threshold"

Is there some definition of these commands missing in the code?