> 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/3.1/api/csharp/yarn.compiler/yarn.compiler.project/yarn.compiler.project.fileversion.md).

# FileVersion

Property in [Project](/3.1/api/csharp/yarn.compiler/yarn.compiler.project.md)

## Summary

Gets or sets the file version of the project.

```csharp
public int FileVersion { get; set; }
```

## Remarks

This value is required to be equal to [CurrentProjectFileVersion](/3.1/api/csharp/yarn.compiler/yarn.compiler.project/yarn.compiler.project.currentprojectfileversion.md) .