# Diagnostics

Property in [CompilationResult](https://docs.yarnspinner.dev/api/csharp/yarn.compiler/yarn.compiler.compilationresult)

## Summary

Gets the collection of [Diagnostic](https://docs.yarnspinner.dev/api/csharp/yarn.compiler/yarn.compiler.diagnostic) objects that describe problems in the source code.

```csharp
public IEnumerable<Diagnostic> Diagnostics { get; internal set; }
```

## Remarks

If the compiler encounters errors while compiling source code, the [CompilationResult](https://docs.yarnspinner.dev/api/csharp/yarn.compiler/yarn.compiler.compilationresult) it produces will have a [Program](https://docs.yarnspinner.dev/api/csharp/yarn.compiler/yarn.compiler.compilationresult/yarn.compiler.compilationresult.program) value of `null` . To help figure out what the error is, users should consult the contents of this property.