{"record":{"id":"9d540026164edb2f","repo":"GoogleContainerTools/skaffold","slug":"strings-join-messages-n-9d5400","errorCode":null,"errorMessage":"strings.Join(messages, \" \\n \")","messagePattern":"strings\\.Join\\(messages, \" \\\\n \"\\)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/skaffold/schema/validation/validation.go","lineNumber":136,"sourceCode":"// It returns all encountered errors as a concatenated string.\nfunc ProcessWithRunContext(ctx context.Context, runCtx *runcontext.RunContext) error {\n\tvar errs []error\n\terrs = append(errs, validateDockerNetworkContainerExists(ctx, runCtx.Artifacts(), runCtx)...)\n\terrs = append(errs, validateVerifyTestsExistOnVerifyCommand(runCtx)...)\n\terrs = append(errs, validateVerifyTests(runCtx)...)\n\terrs = append(errs, validateLocationSetForCloudRun(runCtx)...)\n\terrs = append(errs, validateCustomActionsLists(runCtx)...)\n\terrs = append(errs, validateCustomActionsNames(runCtx)...)\n\terrs = append(errs, validateCustomActionsExecModes(runCtx)...)\n\n\tif len(errs) == 0 {\n\t\treturn nil\n\t}\n\tvar messages []string\n\tfor _, err := range errs {\n\t\tmessages = append(messages, err.Error())\n\t}\n\treturn errors.New(strings.Join(messages, \" \\n \"))\n}\n\n// validateTaggingPolicy checks that the tagging policy is valid in combination with other options.\nfunc validateTaggingPolicy(cfg *parser.SkaffoldConfigEntry, bc latest.BuildConfig) (cfgErrs []ErrorWithLocation) {\n\tif bc.LocalBuild != nil {\n\t\t// sha256 just uses `latest` tag, so tryImportMissing will virtually always succeed (#4889)\n\t\tif bc.LocalBuild.TryImportMissing && bc.TagPolicy.ShaTagger != nil {\n\t\t\tcfgErrs = append(cfgErrs, ErrorWithLocation{\n\t\t\t\tError:    errors.New(\"tagging policy 'sha256' can not be used when 'tryImportMissing' is enabled\"),\n\t\t\t\tLocation: cfg.YAMLInfos.Locate(cfg.Build.TagPolicy.ShaTagger),\n\t\t\t})\n\t\t}\n\t}\n\treturn\n}\n\n// validateImageNames makes sure the artifact image names are unique and valid base names,\n// without tags nor digests.","sourceCodeStart":118,"sourceCodeEnd":154,"githubUrl":"https://github.com/GoogleContainerTools/skaffold/blob/a1189de023efc32d4b8e11f395acc678aa555011/pkg/skaffold/schema/validation/validation.go#L118-L154","documentation":"ProcessWithRunContext validates a config that requires a RunContext; all collected errors are joined with ' \\n ' into one error. It is the run-context-aware counterpart of Process and fires when validation finds problems in that mode.","triggerScenarios":"Calling ProcessWithRunContext (via runContext) on a config whose validation yields errors while a RunContext is required.","commonSituations":"Commands that need a run context (e.g. render/deploy flows) hitting invalid skaffold.yaml content.","solutions":["Parse the ' \\n '-separated messages and fix each underlying config issue.","Validate the config first with Process/`skaffold fix` to surface and fix issues early.","Ensure the required RunContext inputs are correct so run-context-specific checks pass."],"exampleFix":"// before\nerr := validation.ProcessWithRunContext(ctx, cfg) // joined ' \\n ' errors\n// after\nif err := validation.Process(cfg); err != nil {\n    for _, msg := range strings.Split(err.Error(), \" \\n \") {\n        log.Println(msg) // address each issue\n    }\n}","handlingStrategy":"try-catch","validationCode":"if err := validation.Process(cfg); err != nil { return err } // catch plain validation issues before run-context validation","typeGuard":"null","tryCatchPattern":"if err := validation.ProcessWithRunContext(rc, cfg); err != nil {\n    for _, msg := range strings.Split(err.Error(), \" \\n \") {\n        log.Printf(\"run-context issue: %s\", msg)\n    }\n}","preventionTips":["Validate config before commands requiring a RunContext","Split on ' \\n ' (not '\\n') when parsing these messages","Ensure run-context dependencies (kubecontext, etc.) are configured"],"tags":["validation","run-context","aggregated-error"],"backgroundTag":"schema-validation-failed","analyzedSha":"a1189de023efc32d4b8e11f395acc678aa555011","analyzedAt":"2026-09-05T12:09:27.064Z","contentChangedAt":"2026-09-05T12:09:27.064Z","schemaVersion":2},"datasetVersion":"2026-09-12T17:17:11.597Z"}