ValueError: empty string for float() after migrating tickets from Bugzilla To Trac

[Barry]

I have run Bugzilla2Trac and after an issue eventually got the Bugzilla tickets migrated. The first issue was Traceback (most recent call last):

File "C:\Python24\Scripts\bugzilla2trac.py", line 887, in ?

main()

File "C:\Python24\Scripts\bugzilla2trac.py", line 884, in main

convert(BZ_DB, BZ_HOST, BZ_USER, BZ_PASSWORD, TRAC_ENV, TRAC_CLEAN)

File "C:\Python24\Scripts\bugzilla2trac.py", line 780, in convert

trac.addTicketChange (ticketChange)

File "C:\Python24\Scripts\bugzilla2trac.py", line 394, in addTicketChange

(ticket, time.strftime('%s'), author, field,

File "C:\Python24\Lib\site-packages\trac\db\util.py", line 50, in execute

return self.cursor.execute(sql_escape_percent(sql), args)

File "C:\Python24\Lib\site-packages\trac\db\sqlite_backend.py", line 56, in ex

ecute

args or [])

File "C:\Python24\Lib\site-packages\trac\db\sqlite_backend.py", line 48, in n_error

return function(self, *args, kwargs)

pysqlite2.dbapi2.IntegrityError: columns ticket, time, field are not unique

I got around this by introducing OR IGNORE in the INSERT INTO ticket & INSERT INTO ticket_changes clause. This migrated the changes

However when I go to Trac and click on "View Tickets" and select "All Tickets By Milestone (Including closed)" I get the following error

Traceback (most recent call last):

File "C:\Python24\Lib\site-packages\trac\web\main.py", line 387, in dispatch_request

dispatcher.dispatch(req)

File "C:\Python24\Lib\site-packages\trac\web\main.py", line 237, in dispatch

resp = chosen_handler.process_request(req)

File "C:\Python24\Lib\site-packages\trac\ticket\report.py", line 88, in process_request

resp = self._render_view(req, db, id)

File "C:\Python24\Lib\site-packages\trac\ticket\report.py", line 346, in _render_view

valuedate = format_date(cell)

File "C:\Python24\lib\site-packages\trac\util\datefmt.py", line 68, in format_date

return format_datetime(t, format, gmt)

File "C:\Python24\lib\site-packages\trac\util\datefmt.py", line 58, in format_datetime

t = time.localtime(float(t))

ValueError: empty string for float()