{"record":{"id":"685d67abeb12fee2","repo":"flipped-aurora/gin-vue-admin","slug":"d-packagename","errorCode":null,"errorMessage":"模块 %d 的 packageName 不能为空","messagePattern":"模块 (.+?) 的 packageName 不能为空","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/mcp/gva_execute.go","lineNumber":341,"sourceCode":"\n\t\tfor moduleIndex, moduleInfo := range plan.ModulesInfo {\n\t\t\tif moduleInfo.Package == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 package 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.StructName == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 structName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.TableName == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 tableName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.Description == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 description 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.Abbreviation == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 abbreviation 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.PackageName == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 packageName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif moduleInfo.HumpPackageName == \"\" {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 humpPackageName 不能为空\", moduleIndex+1)\n\t\t\t}\n\t\t\tif len(moduleInfo.Fields) == 0 {\n\t\t\t\treturn fmt.Errorf(\"模块 %d 的 fields 不能为空，至少需要一个字段\", moduleIndex+1)\n\t\t\t}\n\n\t\t\tfor i, field := range moduleInfo.Fields {\n\t\t\t\tif field.FieldName == \"\" {\n\t\t\t\t\treturn fmt.Errorf(\"模块 %d 字段 %d 的 fieldName 不能为空\", moduleIndex+1, i+1)\n\t\t\t\t}\n\t\t\t\tif len(field.FieldName) > 0 {\n\t\t\t\t\tfirstChar := string(field.FieldName[0])\n\t\t\t\t\tif firstChar >= \"a\" && firstChar <= \"z\" {\n\t\t\t\t\t\tmoduleInfo.Fields[i].FieldName = strings.ToUpper(firstChar) + field.FieldName[1:]\n\t\t\t\t\t}\n\t\t\t\t}","sourceCodeStart":323,"sourceCodeEnd":359,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/mcp/gva_execute.go#L323-L359","documentation":"The plan's module must specify a PackageName, the Go package name under which generated backend files are placed. validateExecutionPlan throws this error when modules[i].packageName is empty. Validation occurs in Handle prior to any file generation, so no partial output is produced.","triggerScenarios":"Submitting an execution plan to gva_execute where modules[i].packageName is omitted, null, or \"\".","commonSituations":"LLM plans that put the package name only in structName or description; users porting plans from other generators that derive the package from the directory; typos like package instead of packageName.","solutions":["Add a lowercase Go-valid packageName to the module entry (e.g. \"article\")","Ensure it matches an existing server package if generating into one, otherwise a new package will be created","Re-run the tool after correcting the plan"],"exampleFix":"// before\n{\"modules\":[{\"structName\":\"Article\",\"tableName\":\"article\",\"description\":\"article mgmt\",\"abbreviation\":\"art\"}]}\n// after\n{\"modules\":[{\"packageName\":\"article\",\"structName\":\"Article\",\"tableName\":\"article\",\"description\":\"article mgmt\",\"abbreviation\":\"art\"}]}","handlingStrategy":"validation","validationCode":"for i, m := range plan.Modules {\n  if m.PackageName == \"\" {\n    return fmt.Errorf(\"modules[%d].packageName is required\", i)\n  }\n}","typeGuard":"func hasPackageName(m Module) bool { return m.PackageName != \"\" }","tryCatchPattern":null,"preventionTips":["Always set packageName to a lowercase Go-valid identifier","Copy packageName from an existing server package when extending one","Run a schema check on the plan JSON before invoking the tool"],"tags":["mcp","code-generation","validation","config"],"backgroundTag":"missing-required-field","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T22:30:34.772Z"}