This is METAFONT, Version 2.7182818 (TeX Live 2016) (preloaded base=mf 2017.5.16)  1 OCT 2018 07:37
**\mode:=ljfour; mag:=1; nonstopmode; input lasy17

(/Users/alvisesommariva/Library/texlive/2016/texmf-var/fonts/source/lh/lh-t2a/l
asy17.mf (/usr/local/texlive/2016/texmf-dist/fonts/source/lh/base/fikparm.mf
(/usr/local/texlive/2016/texmf-dist/fonts/source/public/cm/cmbase.mf)
(/usr/local/texlive/2016/texmf-dist/fonts/source/lh/base/lcyrbeg.mf)
(/usr/local/texlive/2016/texmf-dist/fonts/source/lh/base/lkligtbl.mf)
>> 0.17
>> "input ecsy"
! I can't find file `ecsy'.
<scantokens> input ecsy
                       
<to be read again> 
                   ;
use_driver->...#=pt#;pt#:=true_pt#;scantokens(ss);
                                                  pt#:=true_pt#;font_identif...
l.304 use_driver(fonteq)
                        ;
Please type another input file name
! Emergency stop.
<scantokens> input ecsy
                       
<to be read again> 
                   ;
use_driver->...#=pt#;pt#:=true_pt#;scantokens(ss);
                                                  pt#:=true_pt#;font_identif...
l.304 use_driver(fonteq)
                        ;
*** (job aborted, file error in nonstop mode)

 
Here is how much of METAFONT's memory you used:
 435 strings out of 5274
 4304 string characters out of 69945
 25403 words of memory out of 5000000
 1335 symbolic tokens out of 9500
 5i,80n,0r,4p,183b stack positions out of 300i,300n,1000r,150p,200000b