Problem with "samba-tool"

[Carmel NY]

FreeBSD 12.0-RELEASE-p10
samba version 4.8.12

When attempting to use the 'samba-tool', I always receive this error
message:

samba-tool
Traceback (most recent call last):
  File "/usr/local/bin/samba-tool", line 33, in <module>
    from samba.netcmd.main import cmd_sambatool
  File "/usr/local/lib/python2.7/site-packages/samba/__init__.py", line
28, in <module> import ldb
ImportError: /usr/local/lib/python2.7/site-packages/ldb.so: Undefined
symbol "ldb_handler_copy"

It doesn't make any difference what command options I use. Before I ask
on a dedicated 'samba support forum', I thought I would first try and
see if this was a localized FreeBSD problem.

-- 
Carmel
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