Unity Build Failed
Workaround available Windows, macOS, Linux Updated November 13, 2026Based on 3 user reportsHow we research
Quick answer
A failed Unity build almost always has a specific compiler or platform error in the Console. Fix script errors, check build module and SDK installs, and read the full build log rather than the summary line.
Most likely fix: Find the first real error
How to fix it
Try these in order — the most common fix is first.
1. Find the first real error
- Open the Console, clear it, and rebuild
- Scroll to the first red error, not the final 'Build failed' line
- Open Editor.log for full detail
Did this fix it?2. Fix Editor code in builds
- Wrap code that uses UnityEditor in #if UNITY_EDITOR
- Keep Editor scripts inside folders named Editor
Did this fix it?3. Install the right build support
- Open Unity Hub > Installs > Add modules for your editor
- Add Android, iOS, WebGL, or other build support as needed
- For Android use the SDK, NDK, and JDK installed by Unity Hub
Did this fix it?4. Shorten paths and free disk space
- Move the project to a short path such as C:\Projects
- Free several GB on the drive before building
Did this fix it?
Symptoms
'Build completed with a result of Failed', or a build stops with errors about scripts, missing modules, or platform tools.
Why it happens
- Script compile errors, including ones in Editor-only code used at runtime
- Missing platform build support module
- Missing or wrong Android SDK/NDK/JDK or Xcode setup
- Incompatible plugins for the target platform
- Not enough disk space or too-long file paths
This guide also covers
- unity build failed
- unity build completed with a result of failed
- unity build error
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