Configuring Activate V8.2 After Upgrade: Resolving Error CS0012

2 min

After upgrading to Activate V8.2, which is built using .NET 8, you may encounter (something similar to) the following error:

error CS0012: The type 'Attribute' is defined in an assembly that is not referenced. You must add a reference to assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'.

This error occurs because the script is using an outdated package. Below is an example of a script that might throw this error:

//@import System.Private.ServiceModel using Innovation.Activate; class Script : ScriptBase { public void main() { LogAudit("Test"); } } [System.ServiceModel.ServiceContractAttribute(Namespace = "http://my.name.space.com/", ConfigurationName = "MyConnectorSoap")] interface MyConnectorSoap { }

In V8, this script throws the error due to the lack of support for older .NET technology, specifically the System.Private.ServiceModel library. The solution is to import the netstandard library. The netstandard library is a formal specification of .NET APIs that are intended to be available on all .NET implementations.

Here is the corrected script:

//@import System.Private.ServiceModel //@import netstandard using Innovation.Activate; class Script : ScriptBase { public void main() { LogAudit("Test"); } } [System.ServiceModel.ServiceContractAttribute(Namespace = "http://my.name.space.com/", ConfigurationName = "MyConnectorSoap")] interface MyConnectorSoap { }

By adding the netstandard library, you ensure compatibility with the new .NET 8 framework, resolving the error and allowing your script to function correctly.