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RKSEL0008

Why this is deprecated

Elmah.ErrorFilterEventArgs is part of the Rokstep.Elmah.Shims shim library. The original library is abandoned or deprecated. This diagnostic ID (RKSEL0008) fires at build time to guide you toward the modern replacement.

Obsolete message: Elmah.ErrorFilterEventArgs is from the deprecated ELMAH library. For new code, replace ELMAH error filters with Microsoft.Extensions.Logging filter delegates or a structured exception-handling middleware. See https://dev.rokstep.eu/migrations/RKSEL0008 for migration guidance.

What you can do

Option 1 — Drop-in shim (zero code changes)

Install the shim package and keep using the existing API. The shim compiles your code but emits this warning at build time.

Terminal window
dotnet add package Rokstep.Elmah.Shims

Option 2 — Migrate to the modern alternative

Replace Elmah.ErrorFilterEventArgs with from.

Type details

While you’re at it

Check the Hardened Migration Security Checklist for common security issues to fix during migration.


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