Unused private field (CA1823)

Key dotnet.codequality.unused-private-field · Severity warning · Category codequality

Microsoft analyzer CA1823. Flags a private field nothing reads or writes. It is dead code - or a sign that the code meant to use it does not.

Incorrect

public class ReportService
{
    private readonly ILogger _logger;
    private int _retries = 3; // never used
}

Correct

public class ReportService
{
    private readonly ILogger _logger;
}