在 vs2017 中运行自定义工具时出现 T4 错误

Question

I do have an issue when I want to run the following command "Run Cosutom Tool" from vs2017.

It stops working after a VS update.

Instead of running the T4 and generating all the code related to this file. The output file will contains the following error message:

Type 'Microsoft.VisualStudio.Data.Tools.Package.Internal.OAFileItem' in Assembly 'Microsoft.VisualStudio.Data.Tools.Package, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' is not marked as serializable.

Full error message:

Severity Code Description Project File Line Suppression State Error Running transformation: System.Runtime.Serialization.SerializationException: Type 'Microsoft.VisualStudio.Data.Tools.Package.Internal.OAFileItem' in Assembly 'Microsoft.VisualStudio.Data.Tools.Package, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' is not marked as serializable.

Server stack trace: at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type) at System.Runtime.Serialization.FormatterServices.<>c__DisplayClass9_0.b__0(MemberHolder _) at System.Collections.Concurrent.ConcurrentDictionary 2.GetOrAdd(TKey key, Func 2 valueFactory) at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context) at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo() at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter, SerializationBinder binder) at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter, SerializationBinder binder) at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
at System.Runtime.Remoting.Channels.CrossAppDomainSerializer.SerializeMessageParts(ArrayList argsToSerialize) at System.Runtime.Remoting.Messaging.SmuggledMethodReturnMessage..ctor(IMethodReturnMessage mrm) at System.Runtime.Remoting.Messaging.SmuggledMethodReturnMessage.SmuggleIfPossible(IMessage msg) at System.Runtime.Remoting.Channels.CrossAppDomainSink.DoDispatch(Byte[] reqStmBuff, SmuggledMethodCallMessage smuggledMcm, SmuggledMethodReturnMessage& smuggledMrm) at System.Runtime.Remoting.Channels.CrossAppDomainSink.DoTransitionDispatchCallback(Object[] args)

Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) at EnvDTE._Solution.FindProjectItem(String FileName) at Microsoft.VisualStudio.TextTemplating6FCAD03755FEA2CF76F69000C72CACC8E11DA21396664770DDB2AE835D7A8E82309989CCBC13688F6AC52D362D892E524A6D1554F901D313ED8AA1C0920ED56C.GeneratedTextTransformation.Manager.VSManager..ctor(ITextTemplatingEngineHost host, StringBuilder template) at Microsoft.VisualStudio.TextTemplating6FCAD03755FEA2CF76F69000C72CACC8E11DA21396664770DDB2AE835D7A8E82309989CCBC13688F6AC52D362D892E524A6D1554F901D313ED8AA1C0920ED56C.GeneratedTextTransformation.Manager.Create(ITextTemplatingEngineHost host, StringBuilder template) at Microsoft.VisualStudio.TextTemplating6FCAD03755FEA2CF76F69000C72CACC8E11DA21396664770DDB2AE835D7A8E82309989CCBC13688F6AC52D362D892E524A6D1554F901D313ED8AA1C0920ED56C.GeneratedTextT ransformation.TransformText() Staging D:\XXXXXXX\MedatadataGeneratedObjects.tt 1

Answer 1

In my T4 I was using the var dte = (DTE) hostServiceProvider.GetService(typeof(DTE)); I switched to use the var dte = (DTE) hostServiceProvider.GetCOMService(typeof(DTE));

Answer 2

I needed this change to run SimpleCRUD ModelGenerator.tt in .NET Core. Thank you!!!