hashicorp/vagrant · error

vagrant.box_version_malformed

Error message

vagrant.box_version_malformed

What it means

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

Source

Thrown at lib/vagrant/box_collection.rb:248

        @logger.debug("Finding all boxes in: #{@directory}")
        @directory.children(true).each do |child|
          # Ignore non-directories, since files are not interesting to
          # us in our folder structure.
          next if !child.directory?

          box_name = undir_name(child.basename.to_s)

          # Otherwise, traverse the subdirectories and see what versions
          # we have.
          child.children(true).each do |versiondir|
            next if !versiondir.directory?
            next if versiondir.basename.to_s.start_with?(".")

            version = versiondir.basename.to_s
            # Ensure version of box is correct before continuing
            if !Gem::Version.correct?(version)
              ui = Vagrant::UI::Prefixed.new(Vagrant::UI::Colored.new, "vagrant")
              ui.warn(I18n.t("vagrant.box_version_malformed",
                             version: version, box_name: box_name))
              @logger.debug("Invalid version #{version} for box #{box_name}")
              next
            end

            versiondir.children(true).each do |architecture_or_provider|
              # If the entry is not a directory, it is invalid and should be ignored
              if !architecture_or_provider.directory?
                @logger.debug("Invalid box #{box_name} (v#{version}) - invalid item: #{architecture_or_provider}")
                next
              end

              # Now the directory can be assumed to be the architecture
              architecture_name = architecture_or_provider.basename.to_s.to_sym

              # Cycle through directories to find providers
              architecture_or_provider.children(true).each do |provider|
                if !provider.directory?

View on GitHub (pinned to 35f3160f4a)

When it happens

Trigger: Thrown at lib/vagrant/box_collection.rb:248 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/99152d7353ab52d1. Report an issue: GitHub.