SonarQube 9.9 not showing Lines of Code (– dash) for .NET Core 3.0 project – only Dockerfile LOC vis

SonarQube Server / Community Build
1

Description / Issue:

We are experiencing an issue where SonarQube 9.9 does not display Lines of Code (LOC) for our .NET Core 3.0 project. Instead of showing LOC, SonarQube displays a dash (–) for all C# files.
Only the Dockerfile LOC is detected and visible in the UI.

Environment Details:

Component Version / Info
SonarQube 9.9 (LTS)
SonarScanner 5.0.2.4997
Java Runtime Java 17
.NET Version .NET Core 3.0
Build Tool Azure DevOps Classic Pipeline
OS / Agent Linux (Ubuntu 4.15.0-142 kernel)

What We Have Already Tried (Troubleshooting Steps):

:check_mark: Verified and configured correct path for code coverage.
:check_mark: Created a new basic pipeline, but the issue persisted.
:check_mark: Performed a standalone analysis with SonarScanner CLI — still LOC shows as (–).
:check_mark: Updated multiple <PropertyGroup> configurations in .csproj, but no change.
:check_mark: Added sonar.sources property – briefly saw duplicate file warnings, but confirmed there are no duplicates.
:check_mark: Added correct include paths, but lines of code are still not detected.

2

Hey there.

You must use the SonarScanner for .NET to analyze .NET code. You cannot use the SonarScanner CLI.

:warning: And, your version is past EOL. You should update to either the latest version or the current LTA (long-term active version) at your earliest convenience. Your update path is:

9.9-> 2025.1.4 → 2025.5 (last step optional)

Or, if you’re using Community Build

9.9-> 24.12 → 25.11 (last step optional)