npm install slug报错 node小白 求助

try to read file /usr/share/unicode/UnicodeData.tx Warning: using slow naiv Buffer.indexOf function! npm install buffertools to speed things up. /usr/share/unicode/UnicodeData.txt not found. try to read file /usr/share/unicode-data/UnicodeDa /usr/share/unicode-data/UnicodeData.txt not found. try to read file UnicodeData.txt … UnicodeData.txt not found. try to download … GET unicode.org:80/Public/UNIDATA/UnicodeData.txt