Code inspection: 'void' method is annotated with the [MustDisposeResource] attribute

This inspection reports void methods annotated with [MustDisposeResource]. That attribute is intended for methods that return a resource the caller must dispose. On a void method, there is no returned resource, so the annotation is meaningless.

Example

                using JetBrains.Annotations;
                class C
                {
                    [MustDisposeResource]
                    public void CreateResource()
                    {
                    }
                }
            

                class C
                {
                    public IDisposable CreateResource()
                    {
                        return new MemoryStream();
                    }
                }
            

Quick-fix

Remove the attribute, or change the method to return the disposable resource.

01 April 2026