NaN Error occured when using JSpecies to calculate ANIm and ANIb

Question

[xyqfuture]

Hi! I am using JSpecies 1.2.1 to calculate ANIm, ANIb and Tetra.However, everytime when I try to calculate ANIm and ANIb,there result shows NaN.And the terminal shows: Error:Cannot run program " ": error=2, No such file or directory. I have installed Blast and MUMmer to my ubuntu system.I am wondering maybe the problem is " point BLAST, NUCmer, formatDB and fastacmd to the executables.", which is on the webpage of JSpecies Documentation (https://imedea.uib-csic.es/jspecies/docu.html). I would be very grateful if someone can instruct me to solve this problem!