Net80 dotnet-nswag.dll Nswagexe.Msbuild giving error in net core 8.0

Question

I am upgrading the web API from framework Net7.0 to Net 8.0 While upgrading i am getting the build error in my local as well as in CI pipeline build. My Debug.nswag is as below and in Client.csproj I am getting error while building

Jayraj Chhaya · Answer

When upgrading to .NET 8.0 ensure that the NSwag configuration is compatible. Check the NSwagExe_Net80 variable in the Debug.nswag file and verify its correctness. Additionally review the NSwag configuration in the Client.csproj file to ensure it aligns with the .NET 8.0 requirements. Make necessary adjustments to the NSwag settings to match the new .NET version. After updating the configurations rebuild the project to resolve the build errors.

Kajri · Answer

I verfied and updated the nessacary changes my debug.nswag is as below. { runtime: Net80 defaultVariables: null documentGenerator: { webApiToOpenApi: { controllerNames: [] isAspNetCore: true resolveJsonOptions: false defaultUrlTemplate: api/{controller}/{id?} addMissingPathParameters: false includedVersions: null defaultPropertyNameHandling: Default defaultReferenceTypeNullHandling: Null defaultDictionaryValueReferenceTypeNullHandling: NotNull defaultResponseReferenceTypeNullHandling: NotNull generateOriginalParameterNames: true defaultEnumHandling: Integer flattenInheritanceHierarchy: false generateKnownTypes: true generateEnumMappingDescription: false generateXmlObjects: false generateAbstractProperties: false generateAbstractSchemas: true ignoreObsoleteProperties: false allowReferencesWithProperties: false excludedTypeNames: [] serviceHost: null serviceBasePath: null serviceSchemes: [] infoTitle: My Title infoDescription: null infoVersion: 1.0.0 documentTemplate: null documentProcessorTypes: [] operationProcessorTypes: [] typeNameGeneratorType: null schemaNameGeneratorType: null contractResolverType: null serializerSettingsType: null useDocumentProvider: true documentName: v1 aspNetCoreEnvironment: null createWebHostBuilderMethod: null startupType: null allowNullableBodyParameters: true useHttpAttributeNameAsOperationId: false output: null outputType: Swagger2 newLineBehavior: Auto noBuild: true assemblyPaths: [] assemblyConfig: null referencePaths: [ ../BHP.MES.MDM.SourceSystem.Api/bin/Debug/net8.0/win-x64 ../BHP.MES.MDM.SourceSystem.Api/bin/Debug/net8.0/win-x64/publish ] useNuGetCache: false } } codeGenerators: { openApiToCSharpClient: { noBuild: true clientBaseClass: MesApiClientBase configurationClass: null generateClientClasses: true generateClientInterfaces: true clientBaseInterface: null injectHttpClient: true disposeHttpClient: false protectedMethods: [] generateExceptionClasses: true exceptionClass: SwaggerException wrapDtoExceptions: true useHttpClientCreationMethod: false httpClientType: System.Net.Http.HttpClient useHttpRequestMessageCreationMethod: true useBaseUrl: true generateBaseUrlProperty: true generateSyncMethods: false generatePrepareRequestAndProcessResponseAsAsyncMethods: false exposeJsonSerializerSettings: false clientClassAccessModifier: public typeAccessModifier: public generateContractsOutput: false contractsNamespace: null contractsOutputFilePath: null parameterDateTimeFormat: s parameterDateFormat: yyyy-MM-dd generateUpdateJsonSerializerSettingsMethod: true useRequestAndResponseSerializationSettings: false serializeTypeInformation: false queryNullValue:  className: {controller}Client operationGenerationMode: MultipleClientsFromOperationId additionalNamespaceUsages: [] additionalContractNamespaceUsages: [] generateOptionalParameters: false generateJsonMethods: false enforceFlagEnums: false parameterArrayType: System.Collections.Generic.IEnumerable parameterDictionaryType: System.Collections.Generic.IDictionary responseArrayType: System.Collections.Generic.ICollection responseDictionaryType: System.Collections.Generic.IDictionary wrapResponses: false wrapResponseMethods: [] generateResponseClasses: true responseClass: SwaggerResponse namespace: BHP.MES.MDM.SourceSystem.Client requiredPropertiesMustBeDefined: true dateType: System.DateTime jsonConverters: null anyType: object dateTimeType: System.DateTime timeType: System.TimeSpan timeSpanType: System.TimeSpan arrayType: System.Collections.ObjectModel.ObservableCollection arrayInstanceType: System.Collections.ObjectModel.Collection dictionaryType: System.Collections.Generic.Dictionary dictionaryInstanceType: System.Collections.Generic.Dictionary arrayBaseType: System.Collections.ObjectModel.Collection dictionaryBaseType: System.Collections.Generic.Dictionary classStyle: Inpc jsonLibrary: NewtonsoftJson generateDefaultValues: true generateDataAnnotations: true excludedTypeNames: [] excludedParameterNames: [] handleReferences: false generateImmutableArrayProperties: false generateImmutableDictionaryProperties: false jsonSerializerSettingsTransformationMethod: null inlineNamedArrays: false inlineNamedDictionaries: false inlineNamedTuples: true inlineNamedAny: false generateDtoTypes: true generateOptionalPropertiesAsNullable: false generateNullableReferenceTypes: false templateDirectory: null typeNameGeneratorType: null propertyNameGeneratorType: null enumNameGeneratorType: null checksumCacheEnabled: false serviceHost: null serviceSchemes: null output: SourceSystemClient.cs newLineBehavior: Auto } } }