{"record":{"id":"fd2e2180af3d67ce","repo":"hashicorp/packer","slug":"this-template-requires-packer-version-s-or-higher","errorCode":null,"errorMessage":"This template requires Packer version %s or higher; using %s","messagePattern":"This template requires Packer version (.+?) or higher; using (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"packer/core.go","lineNumber":875,"sourceCode":"\t\treturn err\n\t}\n\n\t// Validate the minimum version is satisfied\n\tif c.Template.MinVersion != \"\" {\n\t\tversionActual, err := version.NewVersion(c.version)\n\t\tif err != nil {\n\t\t\t// This shouldn't happen since we set it via the compiler\n\t\t\tpanic(err)\n\t\t}\n\n\t\tversionMin, err := version.NewVersion(c.Template.MinVersion)\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\n\t\t\t\t\"min_version is invalid: %s\", err)\n\t\t}\n\n\t\tif versionActual.LessThan(versionMin) {\n\t\t\treturn fmt.Errorf(\n\t\t\t\t\"This template requires Packer version %s or higher; using %s\",\n\t\t\t\tversionMin,\n\t\t\t\tversionActual)\n\t\t}\n\t}\n\n\t// Validate variables are set\n\tvar err error\n\tfor n, v := range c.Template.Variables {\n\t\tif v.Required {\n\t\t\tif _, ok := c.variables[n]; !ok {\n\t\t\t\terr = multierror.Append(err, fmt.Errorf(\n\t\t\t\t\t\"required variable not set: %s\", n))\n\t\t\t}\n\t\t}\n\t}\n\n\t// TODO: validate all builders exist","sourceCodeStart":857,"sourceCodeEnd":893,"githubUrl":"https://github.com/hashicorp/packer/blob/eb36e3c3e48a036f3e8cc94087636ee72e1303c9/packer/core.go#L857-L893","documentation":"Packer templates may declare a `min_version` field. During `Core.validate()` (invoked via `initialize`), the running Packer binary's version is compared against that requirement using hashicorp/go-version. If the running version is strictly less than the declared minimum, template evaluation aborts with this error, because the template uses features or semantics that old binaries cannot safely handle.","triggerScenarios":"A template (JSON `\"min_version\": \"1.10.0\"` or HCL2 `packer { required_version = ... }` path feeding Template.MinVersion) is parsed, `Core.validate()` runs `version.NewVersion(c.version)` vs `versionMin`, and `versionActual.LessThan(versionMin)` returns true — i.e. the binary executing `packer build`/`packer validate` is older than the declared minimum.","commonSituations":"Running an OS-package-manager Packer (often years old) against a template copied from newer docs; CI images pinning an outdated Packer; a colleague's template using newer HCL2 features while you run an old binary; forgetting to upgrade Packer after pulling a shared template repo.","solutions":["Upgrade Packer to the version named in the error (`packer version` to check current, then install >= that minimum, e.g. via `packer` release binary, homebrew, or choco).","If upgrading is impossible and you know the template does not actually need the newer features, lower or remove the `min_version`/`required_version` declaration in the template.","Pin the CI/agent environment to a Packer version matching the template's `min_version` (e.g. setup-packer action with a version input)."],"exampleFix":"// before (template)\n\"min_version\": \"1.12.0\"   // installed Packer is 1.9.5\n// after (option A: upgrade binary)\n$ packer version -> Packer v1.12.0\n// after (option B: relax requirement if features unused)\n\"min_version\": \"1.9.0\"","handlingStrategy":"validation","validationCode":"// before running the build, compare versions\ncurrent, _ := version.NewVersion(packerVersion)\nmin, err := version.NewVersion(\"1.12.0\")\nif err != nil || current.LessThan(min) {\n    return fmt.Errorf(\"need Packer >= %s, have %s\", min, current)\n}","typeGuard":null,"tryCatchPattern":"// Go: check the returned error from Build/Initialize\nif err := core.Initialize(); err != nil {\n    if strings.Contains(err.Error(), \"requires Packer version\") {\n        // fail fast with an upgrade instruction\n        return fmt.Errorf(\"upgrade Packer: %w\", err)\n    }\n    return err\n}","preventionTips":["Pin the Packer version in CI to match the template's min_version/required_version.","Run `packer version` in your Makefile/setup script and bail early if below the required minimum.","Keep `min_version` declarations as low as actually needed so old binaries aren't unnecessarily rejected."],"tags":["packer","versioning","template-validation"],"backgroundTag":"packer-min-version-not-met","analyzedSha":"eb36e3c3e48a036f3e8cc94087636ee72e1303c9","analyzedAt":"2026-09-05T13:20:43.127Z","contentChangedAt":"2026-09-05T13:20:43.127Z","schemaVersion":2},"datasetVersion":"2026-09-12T17:17:11.597Z"}