Version: Unity 6.6 Alpha (6000.6)
LanguageEnglish
  • C#

IPreprocessBuildWithReport.OnPreprocessBuild

Leave feedback
Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Declaration

public void OnPreprocessBuild(BuildReport report);

Parameters

Parameter Description
report A report containing information about the build, such as its target platform and output path.

Description

Implement this method to receive a callback before the build is started.

This method is replaced by IPreprocessBuildWithContext.OnPreprocessBuild, which works for AssetBundle builds as well. This callback is invoked during Player builds, but not during AssetBundle builds.

Additional resources: IPostprocessBuildWithReport, BuildPlayerProcessor, BuildPipeline.BuildPlayer

Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.

Copyright ©2005-2026 Unity Technologies. All rights reserved. Built from job ID 65685448. Built on: 2026-03-30.
Tutorials Community Answers Knowledge Base Forums Asset Store Terms of use Legal Privacy Policy Cookies Do Not Sell or Share My Personal Information