# ProjectLaunchDefaultsAnnotation Constructors

- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Type: [ProjectLaunchDefaultsAnnotation](/reference/api/csharp/aspire.hosting/projectlaunchdefaultsannotation.md)
- Kind: `Constructors`
- Members: `1`

Marks a resource as launched through the .NET SDK, so that Aspire treats it like a C# project.

<a id="constructor"></a>

## ProjectLaunchDefaultsAnnotation

- Name: `Constructor`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/b5f143315ffb6968ea939a9978797a5b20e4c688/src/Aspire.Hosting/ApplicationModel/ProjectLaunchDefaultsAnnotation.cs#L24)

```csharp
public sealed class ProjectLaunchDefaultsAnnotation
{
    public ProjectLaunchDefaultsAnnotation()
    {
        // ...
    }
}
```