unity build_error ai_generated true

Build completed with a result of 'Failed'. UnityEditor.BuildPlayerWindow+BuildMethodException

ID: unity/build-player-failed

Also available as: JSON · Markdown
80%Fix Rate
85%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
2022 active — — —

Root Cause

Player build pipeline failed. Missing scenes, broken references, platform SDK not installed, or script errors in Editor-only code.

generic

Workarounds

  1. 92% success Check the build log for the first error (not the last) 
    Console > clear > build again > the FIRST red error is the root cause; later errors cascade from it

    Sources: https://docs.unity3d.com/Manual/upm-ui.html

  2. 88% success Ensure all scenes in Build Settings are valid 
    File > Build Settings > verify all scenes exist and are checked; remove missing scenes
  3. 85% success Install the target platform SDK/module 
    Unity Hub > Installs > your version > Add Modules > install Android/iOS/WebGL build support

Dead Ends

Common approaches that don't work:

  1. Switch to a different build target to bypass the error 75% fail

    The error is in your project, not the platform. Switching targets just defers the problem.

  2. Disable all error-producing scripts with #if UNITY_EDITOR 82% fail

    Wrapping everything in UNITY_EDITOR strips the code from builds entirely, causing missing references at runtime.