dat not sharing files other than dat.json

hello ,

I am using linux and node version 12,

I installed dat cli globally , with npm i -g dat , on my linux

Then i went to my Desktop and made a folder share_it with one text file in it, as given in the documentation, i did "dat share share_it" it showed me sharing dat: (empty archive),

No files are being shared, as i did a dat clone onto my other computer with other network connection, but no luck,

Can some please help me