hashicorp/vagrant · error · VagrantPlugins::CommunicatorWinRM::Errors::WinRMInvalidTransport

%{transport} is not a supported WinRM transport.

Error message

%{transport} is not a supported WinRM transport.

What it means

Error "%{transport} is not a supported WinRM transport." thrown in hashicorp/vagrant.

Source

Thrown at plugins/communicators/winrm/shell.rb:233

        @logger.info("  - Transport: #{@config.transport}")

        client = ::WinRM::Connection.new(endpoint_options)
        client.logger = @logger
        client
      end

      def connection
        @connection ||= new_connection
      end

      def endpoint
        case @config.transport.to_sym
        when :ssl
          "https://#{@host}:#{@port}/wsman"
        when :plaintext, :negotiate
          "http://#{@host}:#{@port}/wsman"
        else
          raise Errors::WinRMInvalidTransport, transport: @config.transport
        end
      end

      def endpoint_options
        { endpoint: endpoint,
          transport: @config.transport,
          operation_timeout: @config.timeout,
          user: @username,
          password: @password,
          host: @host,
          port: @port,
          basic_auth_only: @config.basic_auth_only,
          no_ssl_peer_verification: !@config.ssl_peer_verification,
          retry_delay: @config.retry_delay,
          retry_limit: @config.max_tries }
      end

      def elevated_username

View on GitHub (pinned to 35f3160f4a)

When it happens

Trigger: Thrown at plugins/communicators/winrm/shell.rb:233 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hashicorp/vagrant@35f3160f4a (2026-08-21). Data as JSON: /api/errors/f3146f50af0f42a1. Report an issue: GitHub.