NetStandard 1.4 does not allow decorating class with [DataContract]
.net-standard, .net-standard-1.4, c#, datacontract
Solution
You'll need to add a reference to the `System.Runtime.Serialization.Primitives` NuGet package to make use of `DataContractAttribute`. It will be available automatically in `netstandard2.0`:
dotnet add package System.Runtime.Serialization.Primitives
Problem
When I try to decorate a class with `[DataContract]` in a .NETStandard 1.4 project ``` [DataContract] [KnownType(typeof(SingleSensorEvent))] [KnownType(typeof(BatchSensorEvent))] public abstract class WebItemBase { // details left out } ``` I get the following compile error 1>WebItemBase.cs(7,6,7,18): error CS0653: Cannot apply attribute class 'DataContract' because it is abstract 1>WebItemBase.cs(8,6,8,15): error CS0012: The type 'Attribute' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Is there a way to use data contracts in NETStandard 1.4?