error generating new dictionary

I've an error generating new dictionary 
'Error: Dest field too large, too many transitions?
for ru_RU
xml file is really big - 77 Mb (other files is about 20 Mb)
plz also look here - https://phpclub.ru/talk/threads/%D0%A0%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F-%D0%BC%D0%BE%D1%80%D1%84%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F.45119/page-23#post-774452