Why this Error keep on poping up?

I have this error caused by field width in a tree, I am frustrated to get rid of it.. I even reset the columns from Front End.. but its just dont wanna go

Traceback (most recent call last):
  File "/trytond/wsgi.py", line 97, in dispatch_request
    return endpoint(request, **request.view_args)
  File "/trytond/protocols/dispatcher.py", line 44, in rpc
    return methods.get(request.rpc_method, _dispatch)(
  File "/trytond/wsgi.py", line 77, in wrapper
    return func(request, *args, **kwargs)
  File "/trytond/protocols/wrappers.py", line 206, in wrapper
    result = func(request, pool, *args, **kwargs)
  File "/trytond/protocols/dispatcher.py", line 216, in _dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File "/trytond/ir/ui/view.py", line 554, in set_width
    tree_width.width = fields.pop(tree_width.field)
KeyError: 'start_date'

Anybody can advice would be appreciated

Bromo

Probably because you do not have the fix for Crash when setting tree width with a field already saved multiple times (#13997) · Issues · Tryton / Tryton · GitLab

I emptied the entire ir_ui_view_tree_width table.. and that error pop-up caused by tree-field width gone.. but then when I custom an existing width of one of the list xml.. the error start poping up again.. then I truncate again. the ir_ui_view_tree_width table.. but when I restart and refresh the page.. the ir_ui_view_tree_width auto populated.. then start the error pop-up again

this is really annoying. I cannot seems to customize a widht of a field without worriying.

Bromo

I managed to fix this.. thanks @ced :+1: