hashicorp/vagrant · error

vagrant.box_malformed_continue_on_update

Error message

vagrant.box_malformed_continue_on_update

What it means

Error "vagrant.box_malformed_continue_on_update" thrown in hashicorp/vagrant.

Source

Thrown at lib/vagrant/action/builtin/box_check_outdated.rb:71

            disable_ssl_revoke_best_effort: env.fetch(:box_download_disable_ssl_revoke_best_effort,
                                                      machine.config.vm.box_download_disable_ssl_revoke_best_effort),
            box_extra_download_options: env[:box_extra_download_options] || machine.config.vm.box_extra_download_options,
          }

          env[:ui].output(I18n.t(
            "vagrant.box_outdated_checking_with_refresh",
            name: box.name,
            version: box.version))
          update = nil
          begin
            update = box.has_update?(constraints, download_options: download_options)
          rescue Errors::BoxMetadataDownloadError => e
            env[:ui].warn(I18n.t(
              "vagrant.box_outdated_metadata_download_error",
              message: e.extra_data[:message]))
          rescue Errors::BoxMetadataMalformed  => e
            @logger.warn(e.to_s)
            env[:ui].warn(I18n.t("vagrant.box_malformed_continue_on_update"))
          rescue Errors::VagrantError => e
            raise if !env[:box_outdated_ignore_errors]
            env[:ui].detail(I18n.t(
              "vagrant.box_outdated_metadata_error_single",
              message: e.message))
          end
          env[:box_outdated] = update != nil
          local_update = check_outdated_local(env)
          if update && (local_update.nil? || (local_update.version < update[1].version))
            env[:ui].warn(I18n.t(
              "vagrant.box_outdated_single",
              name: update[0].name,
              provider: box.provider,
              current: box.version,
              latest: update[1].version))
          elsif local_update
            env[:ui].warn(I18n.t(
              "vagrant.box_outdated_local",

View on GitHub (pinned to 35f3160f4a)

When it happens

Trigger: Thrown at lib/vagrant/action/builtin/box_check_outdated.rb:71 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of hashicorp/vagrant@35f3160f4a (2026-08-21). Data as JSON: /api/errors/d9b9be1eee1b942a. Report an issue: GitHub.