to_model delegated to attachment, but attachment is nil

Question

So I asked this question already here: previous question and didn\'t get much help, I looked for other questions similar to mine, but no resolution. So I\'ll ask the question ag

Answer 1

ISSUE RESOLVED:

  # If you have extra params to permit, append them to the sanitizer.
  def configure_sign_up_params
    devise_parameter_sanitizer.permit(:sign_up, keys: [:firstname, :image])
  end

  # If you have extra params to permit, append them to the sanitizer.
  def configure_account_update_params
    devise_parameter_sanitizer.permit(:account_update, keys: [:firstname, :image])
  end

so the configure_account_update_params defenition was set to permit the :signup not :account_update. I changed it to :account_update and it worked!