Dropbox not uploading/syncing new files after fresh install of Linux Mint 20.1

Hi joekur,

Sometimes it's difficult to find out what's exactly the source of troubles. In such situations additional diagnostic information can show some directions you might missed yet. I'm putting here one script targeting such diagnostic information:

#!/usr/bin/python3
import os, sys, json; from importlib.machinery import SourceFileLoader
dropbox = SourceFileLoader("dropbox", "/usr/bin/dropbox").load_module()
ignore = [".dropbox", ".dropbox.cache"]
success = ["up to date", "infinite"]
with open(os.path.expanduser("~/.dropbox/info.json")) as js:
  dbpath = json.load(js).get('personal').get('path')
if not os.path.exists(dbpath):
  print(f"Dropbox folder doesn't exist: {dbpath}"); sys.exit(2)
def listIssues(path):
  def getStatus(path):
    try:
      st = dc.icon_overlay_file_status(path=path).get('status', ['unknown'])[0]
      if st not in success: return path, st
    except dropbox.DropboxCommand.CommandError as e: return path, e
  def listDir(path, ignore = []):
    for e in os.listdir(path):
      if e not in ignore:
        e = path + os.sep + e
        s = getStatus(e);
        if s is not None: yield s
        if os.path.isdir(e):
          for s in listDir(e): yield s
  try:
    with dropbox.closing(dropbox.DropboxCommand()) as dc:
      s = getStatus(path);
      if s is not None: yield s
      for s in listDir(path, ignore): yield s
  except dropbox.DropboxCommand.CouldntConnectError:
    print("Dropbox isn't running!"); sys.exit(3)
issues = [*listIssues(dbpath)];
print("Versions:"); dropbox.version([])
print("Status:"); dropbox.status([])
if len(issues) != 0:
  indent = max(len(st)+1 for _, st in issues);
  id = os.popen("id", 'r').read().strip(); print(f"Your id: {id}")
  print("Issues found:");
  for path, st in issues: print("%-*s %s" %
          (indent, st+':', os.popen(f"ls -ld \"{path}\"", 'r').read().strip()))
  sys.exit(1)
print("No any issues found!");

You can copy content above and paste in a file with name like a "testdropbox" (for example) using simple text editor of your choice in your home folder. It's a simple Python script. To do some work this script has to be made executable. This can be achieved using following command:

chmod a+x testdropbox

Now you can run it and receive in terminal different diagnostic information including all files not in sync yet with some additional information. You can run it using following command:

~/testdropbox

While take a closer look on received information you can try find some predispositions able to be source for the issues like owner (mis)matching, permissions, etc. 😉 This same information can be useful to the staff supporting you too.

Good luck.