{"record":{"id":"388f5252ffd05e35","repo":"dagger/dagger","slug":"failed-to-create-method-s-for-s-w","errorCode":null,"errorMessage":"failed to create method %s for %s: %w","messagePattern":"failed to create method (.+?) for (.+?): %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"core/sdk/dang/v1/helpers.go","lineNumber":718,"sourceCode":"\t\tif !ok || slot.Visibility < dang.PublicVisibility {\n\t\t\tcontinue\n\t\t}\n\n\t\tbindingName := slot.Name.Name\n\t\tscheme, found := classMod.LocalSchemeOf(bindingName)\n\t\tif !found {\n\t\t\treturn res, fmt.Errorf(\"missing local slot %s for %s\", bindingName, name)\n\t\t}\n\n\t\tslotType, isMono := scheme.Type()\n\t\tif !isMono {\n\t\t\treturn res, fmt.Errorf(\"non-monotype method %s\", bindingName)\n\t\t}\n\t\tswitch x := slotType.(type) {\n\t\tcase *hm.FunctionType:\n\t\t\tfnDef, err := createFunction(ctx, srv, classMod, bindingName, x, module.Closure, localTypes)\n\t\t\tif err != nil {\n\t\t\t\treturn res, fmt.Errorf(\"failed to create method %s for %s: %w\", bindingName, name, err)\n\t\t\t}\n\t\t\tfnDefID, err := fnDef.ID()\n\t\t\tif err != nil {\n\t\t\t\treturn res, fmt.Errorf(\"failed to get function ID for %s: %w\", bindingName, err)\n\t\t\t}\n\n\t\t\tsels = append(sels, dagql.Selector{\n\t\t\t\tField: \"withFunction\",\n\t\t\t\tArgs:  []dagql.NamedInput{{Name: \"function\", Value: dagql.NewID[*core.Function](fnDefID)}},\n\t\t\t})\n\t\tdefault:\n\t\t\tfieldDef, err := dangTypeToTypeDef(ctx, srv, slotType, localTypes)\n\t\t\tif err != nil {\n\t\t\t\treturn res, fmt.Errorf(\"failed to create field %s: %w\", bindingName, err)\n\t\t\t}\n\t\t\tfieldDefID, err := fieldDef.ID()\n\t\t\tif err != nil {\n\t\t\t\treturn res, fmt.Errorf(\"failed to get field type ID for %s: %w\", bindingName, err)","sourceCodeStart":700,"sourceCodeEnd":736,"githubUrl":"https://github.com/dagger/dagger/blob/82ba2681dbe30d3547a1dc50ea495900ab5b6047/core/sdk/dang/v1/helpers.go#L700-L736","documentation":"Wraps a failure from createFunction while converting a public function-typed slot of a Dang class into a core.Function definition inside createObjectTypeDef. Fires when method creation fails (unresolvable types, schema select errors), aborting the whole class TypeDef and initDangModule.","triggerScenarios":"Thrown at core/sdk/dang/v1/helpers.go:718 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Inspect the wrapped cause for the real failure inside createFunction.","Verify the class method uses resolvable monomorphic types and the Dang module compiles.","Fix the offending method or mark the slot private so it is skipped from binding generation."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"82ba2681dbe30d3547a1dc50ea495900ab5b6047","analyzedAt":"2026-09-05T07:21:37.930Z","contentChangedAt":"2026-09-05T07:21:37.930Z","schemaVersion":2},"datasetVersion":"2026-09-12T12:17:11.808Z"}