{"record":{"id":"95d8a83a4e344d96","repo":"hashicorp/packer","slug":"there-is-no-iteration-associated-with-the-channel-95d8a8","errorCode":null,"errorMessage":"there is no iteration associated with the channel %s","messagePattern":"there is no iteration associated with the channel (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"datasource/hcp-packer-iteration/data.go","lineNumber":121,"sourceCode":"\tlog.Printf(\"[WARN] Deprecation: `hcp-packer-iteration` datasource has been deprecated. \" +\n\t\t\"Please use `hcp-packer-version` datasource instead.\")\n\tctx := context.TODO()\n\n\tcli, err := hcpapi.NewDeprecatedClient()\n\tif err != nil {\n\t\treturn cty.NullVal(cty.EmptyObject), err\n\t}\n\t// Load channel.\n\tlog.Printf(\"[INFO] Reading iteration info from HCP Packer registry (%s) [project_id=%s, organization_id=%s, channel=%s]\",\n\t\td.config.Bucket, cli.ProjectID, cli.OrganizationID, d.config.Channel)\n\n\tchannel, err := cli.GetChannel(ctx, d.config.Bucket, d.config.Channel)\n\tif err != nil {\n\t\treturn cty.NullVal(cty.EmptyObject), fmt.Errorf(\"error retrieving \"+\n\t\t\t\"iteration from HCP Packer registry: %s\", err.Error())\n\t}\n\tif channel.Iteration == nil {\n\t\treturn cty.NullVal(cty.EmptyObject), fmt.Errorf(\"there is no iteration associated with the channel %s\",\n\t\t\td.config.Channel)\n\t}\n\n\titeration := channel.Iteration\n\n\trevokeAt := time.Time(iteration.RevokeAt)\n\tif !revokeAt.IsZero() && revokeAt.Before(time.Now().UTC()) {\n\t\t// If RevokeAt is not a zero date and is before NOW, it means this iteration is revoked and should not be used\n\t\t// to build new images.\n\t\treturn cty.NullVal(cty.EmptyObject), fmt.Errorf(\"the iteration associated with the channel %s is revoked and can not be used on Packer builds\",\n\t\t\td.config.Channel)\n\t}\n\n\toutput := DatasourceOutput{\n\t\tAuthorID:           iteration.AuthorID,\n\t\tBucketName:         iteration.BucketSlug,\n\t\tComplete:           iteration.Complete,\n\t\tCreatedAt:          iteration.CreatedAt.String(),","sourceCodeStart":103,"sourceCodeEnd":139,"githubUrl":"https://github.com/hashicorp/packer/blob/eb36e3c3e48a036f3e8cc94087636ee72e1303c9/datasource/hcp-packer-iteration/data.go#L103-L139","documentation":"Same family as error 40, but for the hcp-packer-iteration datasource: GetChannel succeeded yet the returned channel has a nil Iteration, meaning no iteration/release is assigned to that channel. The datasource cannot produce an iteration output and returns a null cty value.","triggerScenarios":"Execute -> cli.GetChannel returns successfully but channel.Iteration == nil for d.config.Channel; Execute returns this error immediately after.","commonSituations":"Newly created channel with no release; release on the channel was removed or reassigned; channel name typo pointing at a different empty channel; automation cleared channel assignments during a rollback process.","solutions":["Assign an iteration/release to the channel in HCP Packer before building.","Verify the channel name and that it belongs to the same bucket/project.","Query the bucket's iterations directly via the HCP UI/CLI to confirm one exists, then publish it to the channel."],"exampleFix":"// before\ndata \"hcp-packer-iteration\" \"iter\" {\n  bucket_name = \"my-app\"\n  channel     = \"staging\" // exists but no release assigned\n}\n// after\n// Assign a release to 'staging' in HCP, or reference a known-good channel:\ndata \"hcp-packer-iteration\" \"iter\" {\n  bucket_name = \"my-app\"\n  channel     = \"production\"\n}","handlingStrategy":"validation","validationCode":"// Confirm the channel has a release before building:\n// hcp packer channels show <channel> --bucket=my-app --format=json | jq -e '.iteration' \\\n//   || { echo 'channel has no assigned iteration'; exit 1; }","typeGuard":null,"tryCatchPattern":"packer build template.pkr.hcl 2>&1 | tee /tmp/build.log || {\n  grep -q 'no iteration associated with the channel' /tmp/build.log && echo \"Publish an iteration to the channel first\"\n  exit 1\n}","preventionTips":["Gate channel creation and release assignment in the same pipeline step.","Verify channel state with the hcp CLI in pre-build checks.","Avoid deleting/reattaching releases during deploys while builds may run.","Share one hcp-packer-iteration lookup across templates to centralize the failure point."],"tags":["hcp-packer","datasource","channel","registry"],"backgroundTag":"hcp-channel-no-iteration","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"}