{"record":{"id":"105f96fe0eff8c0a","repo":"hashicorp/vagrant","slug":"there-are-errors-in-the-configuration-of-this-mach","errorCode":null,"errorMessage":"There are errors in the configuration of this machine. Please fix\nthe following errors and try again:\n\n%{errors}","messagePattern":"There are errors in the configuration of this machine\\. Please fix\nthe following errors and try again:\n\n%(.+?)","errorType":"exception","errorClass":"Vagrant::Errors::ConfigInvalid","httpStatus":null,"severity":"error","filePath":"lib/vagrant/action/builtin/config_validate.rb","lineNumber":21,"sourceCode":"\nrequire \"vagrant/util/template_renderer\"\n\nmodule Vagrant\n  module Action\n    module Builtin\n      # This class validates the configuration and raises an exception\n      # if there are any validation errors.\n      class ConfigValidate\n        def initialize(app, env)\n          @app = app\n        end\n\n        def call(env)\n          if !env.key?(:config_validate) || env[:config_validate]\n            errors = env[:machine].config.validate(env[:machine], env[:ignore_provider])\n\n            if errors && !errors.empty?\n              raise Errors::ConfigInvalid,\n                errors: Util::TemplateRenderer.render(\n                  \"config/validation_failed\",\n                  errors: errors)\n            end\n          end\n\n          @app.call(env)\n        end\n      end\n    end\n  end\nend\n","sourceCodeStart":3,"sourceCodeEnd":34,"githubUrl":"https://github.com/hashicorp/vagrant/blob/35f3160f4ad6edc3a9f3aa9570adfc1a4d73aaa5/lib/vagrant/action/builtin/config_validate.rb#L3-L34","documentation":"The ConfigValidate middleware runs `machine.config.validate` before machine actions and raises ConfigInvalid with a rendered list of every validation error when any exist. These errors come from Vagrantfile config classes (vm, ssh, network) and from provider plugin settings, so the message is an aggregate report of everything wrong with your Vagrantfile.","triggerScenarios":"Any machine action (up, reload, provision, destroy, ssh, package...) when the merged Vagrantfile validation returns errors (lib/vagrant/action/builtin/config_validate.rb:15-23). Examples: invalid forwarded-port numbers, private_key_path pointing at a missing file, unknown network options, provider-specific keys failing the provider's own validate hook.","commonSituations":"Typo'd option names or string/int mixups after copy-pasting Vagrantfile snippets; upgrading Vagrant or a provider plugin where an option became invalid; environment-specific paths (keys, synced folder paths) that exist on one machine but not another.","solutions":["Read the enumerated errors in the message; each names the config key and the problem — fix them one by one in the Vagrantfile.","Run `vagrant validate` (add `--ignore-provider` to skip provider checks) to re-check without attempting an up.","If the error is from a provider section, confirm that provider plugin is installed (`vagrant plugin list`) and its version matches the option you used."],"exampleFix":"# before\nconfig.vm.network \"forwarded_port\", guest: \"80\", host: 8080  # guest as string + later collision\n\n# after\nconfig.vm.network \"forwarded_port\", guest: 80, host: 8080, auto_correct: true","handlingStrategy":"validation","validationCode":"# Fail fast on Vagrantfile problems before any expensive action\nvagrant validate --ignore-provider || exit 1\nvagrant up","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Run `vagrant validate` as the first step of CI jobs and pre-commit checks for Vagrantfile changes.","Keep provider-specific settings inside `config.vm.provider \"...\"` blocks so validation attributes them correctly.","When a plugin upgrade changes option validity, re-run vagrant validate immediately after `vagrant plugin update`."],"tags":["vagrant","configuration","vagrantfile","validation"],"backgroundTag":"config-validation-failed","analyzedSha":"35f3160f4ad6edc3a9f3aa9570adfc1a4d73aaa5","analyzedAt":"2026-08-21T13:34:32.514Z","schemaVersion":2},"datasetVersion":"2026-08-21T18:17:14.833Z"}