SYSLIB0010: Unsupported remoting APIs
.NET remoting is a legacy technology, and the infrastructure exists only in .NET Framework. The following remoting-related APIs are marked as obsolete, starting in .NET 5. Using them in code generates warning SYSLIB0010 at compile time and throws a PlatformNotSupportedException at run time.
Workarounds
Consider using WCF or HTTP-based REST services to communicate with objects in other applications or across machines. For more information, see .NET Framework technologies unavailable on .NET Core.
Suppress a warning
If you must use the obsolete APIs, you can suppress the warning in code or in your project file.
To suppress only a single violation, add preprocessor directives to your source file to disable and then re-enable the warning.
// Disable the warning.
#pragma warning disable SYSLIB0010
// Code that uses obsolete API.
// ...
// Re-enable the warning.
#pragma warning restore SYSLIB0010
To suppress all the SYSLIB0010 warnings in your project, add a <NoWarn> property to your project file.
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
...
<NoWarn>$(NoWarn);SYSLIB0010</NoWarn>
</PropertyGroup>
</Project>
For more information, see Suppress warnings.
