Edit the file to be edited by gedit. After saving, a warning of Set document metadata failed: Setting attribute metadata::gedit-position no appears

Set document metadata failed: Setting attribute metadata::gedit-position no
My situation is as follows:

About this situation can see: https://askubuntu.com/questions/798935/set-document-metadata-failed-when-i-run-sudo-gedit
The blog’s solution is that it’s just a warning, just ignore it.

Read More: