Code Coverage Works for .NET Framework Console App but Not for ASP.NET MVC (4.7.2) — Always 0% Visited

[vinomra]

Hi Steve and team,

I'm successfully able to generate code coverage reports using AltCover for a .NET Framework console application, but I’m facing an issue when trying the same with an ASP.NET MVC (4.7.2) application — the coverage report always shows 0 visited.

Here are the exact steps I followed (paths partially hidden):

1. Instrument assemblies:
   altcover --inputDirectory "E:...\samaltcovermvc\bin" --outputDirectory "E:...\samaltcovermvc\instrumented" --report "coverage.xml"

2. Copy instrumented files back:
   Copy-Item -Path "E:...\samaltcovermvc\instrumented*" -Destination "E:...\samaltcovermvc\bin" -Recurse -Force

3. Start the app via IIS and browse multiple pages.

4. Collect coverage data:
   altcover runner --recorderDirectory "E:...\samaltcovermvc\bin" --collect

5. Generate report:
   reportgenerator -reports:"coverage.xml" -targetdir:"coveragereport"
   start coveragereport\index.html

Despite following these steps, the report always shows 0% coverage for the ASP.NET MVC app.

Is there something specific I need to do differently for MVC applications under IIS? Would appreciate any guidance on troubleshooting or setup adjustments.

Thanks in advance!