In trying to migrate app/module to odoo 13 I get KeyError: 'tax_line_ids' - odoo

Question

In trying to migrate a module from odoo 11 to 13 I get the error KeyError: 'tax_line_ids'. Please help me solve this issue.
It's a brazilian module for billets
I've put "->" in the lines where tax_line_ids are detected in code. Somebody help me please. I can't find this module easily 'cause it's brazilian. The company that made it in odoo 11 now works with another company which charges for the billets so they stopped updating
Odoo Server Error
Traceback (most recent call last):
File "C:\Users\Eliane\Documents\Odoo\server\odoo\http.py", line 624, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\http.py", line 310, in _handle_exception
raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
File "C:\Users\Eliane\Documents\Odoo\server\odoo\tools\pycompat.py", line 14, in reraise
raise value
File "C:\Users\Eliane\Documents\Odoo\server\odoo\http.py", line 669, in dispatch
result = self._call_function(**self.params)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\http.py", line 350, in _call_function
return checked_call(self.db, *args, **kwargs)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\service\model.py", line 94, in wrapper
return f(dbname, *args, **kwargs)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\http.py", line 339, in checked_call
result = self.endpoint(*a, **kw)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\http.py", line 915, in __call__
return self.method(*args, **kw)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\http.py", line 515, in response_wrap
response = f(*args, **kw)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\addons\web\controllers\main.py", line 1326, in call_button
action = self._call_kw(model, method, args, kwargs)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\addons\web\controllers\main.py", line 1314, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\api.py", line 387, in call_kw
result = _call_kw_multi(method, model, args, kwargs)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\api.py", line 374, in _call_kw_multi
result = method(recs, *args, **kwargs)
File "<decorator-gen-60>", line 2, in button_immediate_install
File "C:\Users\Eliane\Documents\Odoo\server\odoo\addons\base\models\ir_module.py", line 72, in check_and_log
return method(self, *args, **kwargs)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\addons\base\models\ir_module.py", line 463, in button_immediate_install
return self._button_immediate_function(type(self).button_install)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\addons\base\models\ir_module.py", line 573, in _button_immediate_function
modules.registry.Registry.new(self._cr.dbname, update_module=True)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\modules\registry.py", line 86, in new
odoo.modules.load_modules(registry._db, force_demo, status, update_module)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\modules\loading.py", line 423, in load_modules
loaded_modules, update_module, models_to_check)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\modules\loading.py", line 315, in load_marked_modules
perform_checks=perform_checks, models_to_check=models_to_check
File "C:\Users\Eliane\Documents\Odoo\server\odoo\modules\loading.py", line 201, in load_module_graph
registry.setup_models(cr)
File "C:\Users\Eliane\Documents\Odoo\server\odoo\modules\registry.py", line 266, in setup_models
dependencies[field] = set(field.resolve_depends(model))
File "C:\Users\Eliane\Documents\Odoo\server\odoo\fields.py", line 695, in resolve_depends
field = field_model._fields[fname]
-> KeyError: 'tax_line_ids'
file 1
class AccountInvoice(models.Model):
_inherit = 'account.move'
#api.depends('invoice_line_ids.price_subtotal',
'invoice_line_ids.price_total',
-> 'tax_line_ids.amount',
'currency_id', 'company_id')
in file 1 still
#api.model
def tax_line_move_line_get(self):
res = super(AccountInvoice, self).tax_line_move_line_get()
done_taxes = []
-> for tax_line in sorted(self.tax_line_ids, key=lambda x: -x.sequence):
if tax_line.amount and tax_line.tax_id.deduced_account_id:
tax = tax_line.tax_id
done_taxes.append(tax.id)
res.append({
'invoice_tax_line_id': tax_line.id,
'tax_line_id': tax_line.tax_id.id,
'type': 'tax',
'name': tax_line.name,
'price_unit': tax_line.amount * -1,
'quantity': 1,
'price': tax_line.amount * -1,
'account_id': tax_line.tax_id.deduced_account_id.id,
'account_analytic_id': tax_line.account_analytic_id.id,
'invoice_id': self.id,
'tax_ids': [(6, 0, done_taxes)]
if tax_line.tax_id.include_base_amount else []
})
return res
another xml file
-> <field name="tax_line_ids" position="after">
<group name="documentos_relacionados" string="Documentos Relacionados">
<field colspan="4" nolabel="1" name="fiscal_document_related_ids">
<tree>
<field name="document_type"/>
<field name="access_key"/>
<field name="serie"/>
<field name="internal_number"/>
</tree>

Answer 1

The field tax_line_ids is no longer available.
If you check the commit you will see that o.tax_line_ids was replaced by o.line_ids.filtered(lambda line: line.tax_line_id).
Try to replace o.tax_line_ids with o.line_ids.filtered(lambda line: line.tax_line_id) in your methods.
Remplace tax_line_ids.amount with line_ids.tax_line_id.amount in depends decorator.
Use another field in the XML definition.