404 /admin/users/56e12abb81059f1f40cea663/edit

[984958198]

http://127.0.0.1:8080/admin/users/56e12abb81059f1f40cea663/edit

Error 404
We're sorry but we weren't able to process this request.

class Group(MappedClass):
    """
    Group definition.
    """
    class __mongometa__:
        session = DBSession
        name = 'sys_group'
        unique_indexes = [('group_name',),]

    _id = FieldProperty(s.String)          #set str type
    group_name = FieldProperty(s.String)
    display_name = FieldProperty(s.String)

    permissions = RelationProperty('Permission')

pip list:

alembic (0.8.4)
babel (2.2.0)
backlash (0.1.1)
beaker (1.8.0)
crank (0.8.0)
decorator (4.0.9)
formencode (1.3.0)
funcsigs (0.4)
gearbox (0.1.1)
genshi (0.7)
gweb (0.1, f:\gweb)
mako (1.0.3)
MarkupSafe (0.23)
ming (0.5.3)
myproj (0.1, f:\guozx\myproj)
nose (1.3.7)
PasteDeploy (1.5.2)
pip (8.1.0)
pymongo (2.9.2)
python-editor (0.5)
pytz (2015.7)
repoze.lru (0.6)
repoze.who (2.2)
requests (2.9.1)
setuptools (20.3.1)
six (1.10.0)
speaklater (1.3)
sprox (0.10.2)
sqlalchemy (1.0.12)
Tempita (0.5.2)
tg.devtools (2.3.8)
tgext.admin (0.7.2)
tgext.crud (0.8.2)
transaction (1.4.4)
TurboGears2 (2.3.8)
tw2.core (2.2.4)
tw2.forms (2.2.4.post1)
webhelpers2 (2.0)
WebOb (1.6.0)
WebTest (1.4.3)
wheel (0.29.0)
zope.interface (4.1.3)
zope.sqlalchemy (0.7.6)

[amol-]

May I say that I didn't understand the problem?

Title reports an 404 on an user, but you linked code of the Group model.
If I try to edit an user on a newly quickstarted projects with TG2.3.8 it seems to work as expected for me.

[984958198]

$ gearbox quickstart --ming myproj create mongodb project
I will model
_id = FieldProperty(s.ObjectId)
update
_id = FieldProperty(s.String)
in mongodb is str type
When I was in the admin editor in 404
Like editing it will go into the objectid type queries