Unity Android IL2CPP Build Failed: SDK, NDK, and Toolchain Checklist

Checklist for Unity Android IL2CPP build failures involving Android NDK, SDK, JDK, or toolchain paths.

Intent: medium

Fast checklist

1. Check whether the project uses IL2CPP.
2. Verify Android NDK path in Unity External Tools.
3. Verify Android SDK path.
4. Verify JDK path.
5. Use Unity Hub installed modules when possible.

Tool/checklist

Unity Android Build Doctor checklist/tool

Related pages

• Unity Gradle Build Failed
• Unity Android Duplicate Class Error
• All Unity Android build error pages