Sonar can't even detect a variable that was used inside a function

[Colin]

False-positives happen.

This smells a bit like an issue that was reported in the past:

"Unused local variables should be removed" is broken

Hello @GHGHGHKO, Thanks for your report. I was able to reproduce this issue when analyzing the single file. However, when I analyze the whole project, this issue disappears. This means that the problem is that SonarLint wasn’t able to locate the .class files of your project correctly. And without semantics, the analyzer is not able to resolve variables, types, and bindings correctly, which leads to the incorrect result. For now, I can suggest you build your project with Gradle (either from the…

You can see in that thread there’s an open ticket – in the meantime, can you make sure your project is built?