I tried to upload a folder the_one_simulator to Gitlab, but the folder is uploaded as a subproject, as shown below. 
the_one_simulator was originally a repository in Bitbucket. I just copied it into nc_ptn, and ran the following command under nc_ptn/. 
git add .
git commit -m "Add the ONE simulator"
git push -u origin master
How do I upload all files under the_one_simulator to Gitlab?
I deleted the_one_simulator/.git/, and tried git add ., but encountered the following issue,
$ git add .
Assertion failed: (item->nowildcard_len <= item->len && item->prefix <= item->len), function prefix_pathspec, file pathspec.c, line 317.
Abort trap: 6

 
     
    