Type error on nested form - ruby-on-rails

Question

been banging my head on the table over this one. I have another nested form but this one is driving me crazy.
The error is:
TypeError in CompaniesController#create
no implicit conversion of Symbol into Integer
#company = Company.new(company_params)
The controller:
class CompaniesController < ApplicationController
layout 'welcome'
def new
#company = Company.new
end
def create
#company = Company.new(company_params)
if #company.save
flash[:notice] = "New company created successful."
redirect_to admin_accounts_path
else
flash.now[:alert] = "Creation failed, please try again"
render :new
end
end
private
def company_params
params.require(:company).permit(:name, :location, :users_attributes => [:email, :password])
end
end
On the new.html.erb:
<%= render partial: 'form', locals: { company: #company, users_attributes: :users_attributes } %>
This code looks exactly like another nested setup I have, but it works :p
I had read that sometimes changing the params from => to just having a semicolon works, but replacing the user_attributes => with a user_attributes: didn't change anything.
EDIT: form.html.erb
<%= form_for company, url: companies_path do |f| %>
<div class="col-12">
<div class="row">
<div class="col p-0 mr-3">
<div class="form-group">
Company <%= f.label :name %>
<%= f.text_field :name, :placeholder => 'Company name', class: 'form-control' %>
</div>
<div class="form-group">
<%= f.label :location %>
<%= f.text_field :location, :placeholder => 'Location', class: 'form-control' %>
</div>
</div>
<div class="col p-0">
<%= f.fields_for users_attributes do |user_f| %>
<div class="form-group">
<%= user_f.label :email %>
<%= user_f.text_field :email, :placeholder => 'Your Email Address', class: 'form-control' %>
</div>
<div class="form-group">
<%= user_f.label :password %>
<%= user_f.password_field :password, :placeholder => 'Password', class: 'form-control' %>
</div>
<% end %>
</div>
<div class="col-12 p-0">
<%= f.submit "Sign-Up", :class => 'btn btn-primary btn-block btn-lg' %>
</div>
</div>
</div>
<% end %>

Answer 1

Use users instead of users_attributes on the form.
Don't forget to define accepts_nested_attributes_for :users in model Company
## new.html.erb
<%= render partial: 'form', locals: { company: #company, users_attributes: :users } %>
I wonder why you didn't put :users into the form directly