craft not finding installed utilities

[Jack]

For example, I know craft has grep and ninja installed, if nothing else  
by looking at the output of "craft --print-installed" but invoking  
either of them on the command line fails with a "the term is not  
recognized..." error.  I'm pretty sure things were working fine the  
last time I did anything a few weeks ago.  Today I tried "craft  
kmymoney" and it upgraded numerous packages, and then failed on one,  
claiming it couldn't find Ninja.

Has something changed recently requiring some change to my  
configuration?  How much and what pieces of my configuration do I need  
to post here to figure out where to look.

Thanks for any pointers or suggestions.

Jack