Code inspection: Unused nullable directive

This inspection reports a #nullable directive that does not change the current nullable context. Removing it makes the file easier to follow without affecting nullability analysis.

Example

                #nullable enable
                #nullable enable
                class C
                {
                }
            

                #nullable enable
                class C
                {
                }
            

Quick-fix

The quick-fix removes the redundant #nullable directive.

13 April 2026