> For the complete documentation index, see [llms.txt](https://docs.yarnspinner.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yarnspinner.dev/api/csharp/yarn.compiler/yarn.compiler.diagnostic/yarn.compiler.diagnostic..ctor-2.md).

# Diagnostic(string,DiagnosticSeverity)

Constructor in [Diagnostic](/api/csharp/yarn.compiler/yarn.compiler.diagnostic.md)

## Summary

Initializes a new instance of the [Diagnostic](/api/csharp/yarn.compiler/yarn.compiler.diagnostic.md) class.

```csharp
public Diagnostic(string message, DiagnosticSeverity severity = DiagnosticSeverity.Error)
```

## Parameters

| Name                                                                                                                                                      | Description                                |
| --------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------ |
| `string` message                                                                                                                                          | Gets or sets the description of the issue. |
| [Yarn.Compiler.Diagnostic.DiagnosticSeverity](/api/csharp/yarn.compiler/yarn.compiler.diagnostic/yarn.compiler.diagnostic.diagnosticseverity.md) severity | Gets or sets the severity of the issue.    |