# previousBuildReportDirectories

> Use this property to reference the output folders or build report directories from one or more BuildPipeline.BuildContentDirectory builds.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.7/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public string[] previousBuildReportDirectories { readonly get; set; }
```

### Remarks

The types used in those builds are included in the information provided to UnityLinker. This ensures that the Player can load all the content from those additional builds.

During a build you can also add directories from a build callback with [BuildPlayerContext.AddPreviousBuildReportDirectory](/engine/6000.7/script-reference/unityeditor/build/buildplayercontext/addpreviousbuildreportdirectory.md).

For more information, refer to [How code stripping affects content](/engine/6000.7/manual/scripting/compilation-and-code-reload/script-compilation/managed-code-stripping/content.md).

Additional Resources: [BuildPipeline.BuildContentDirectory](/engine/6000.7/script-reference/unityeditor/buildpipeline/buildcontentdirectory.md), [BuildPlayerContext.AddPreviousBuildReportDirectory](/engine/6000.7/script-reference/unityeditor/build/buildplayercontext/addpreviousbuildreportdirectory.md)