Fix: Failed to Extract Resources Needed by IL2CPP
- Blog
- September 22, 2022
If you’re getting the “Failed to extract resources needed by IL2CPP” error when trying to build your Unity project for Android, don’t worry, it’s an easy fix. This error occurs because the Android SDK can’t find the il2cpp.exe file, which is used to convert managed code (C# or UnityScript) to native code. The il2cpp.exe file is located in the “Editor” folder of your Unity installation. To fix the error, simply copy the il2cpp.exe file to the “Android SDK\tools” folder.
Table of Contents
Fix: Failed to Extract Resources Needed by IL2CPP
What is IL2CPP?
IL2CPP is a Unity-developed scripting back-end which you can use as an alternative to Mono when building projects for some platforms. When using IL2CPP, Unity converts IL code from scripts and assemblies into C++, before creating a native binary file (.exe, .apk, .xap, for example). This process is known as “ahead-of-time (AOT) compilation”.
One advantage of IL2CPP is that it can reduce the size of your build artifacts. It also has better support for garbage collection and memory management, which can lead to more stable and performant games.
However, IL2CPP can also introduce some overhead, and so it’s not always the best choice for every project. It’s important to evaluate your specific needs before deciding whether or not to use IL2CPP.
How to fix “Failed to Extract Resources Needed by IL2CPP”
If you’re seeing the error “Failed to Extract Resources Needed by IL2CPP”, it’s likely that you’re trying to build an IL2CPP project in Unity that is using an incompatible version of Visual Studio. To fix this, you’ll need to either downgrade to a compatible version of Visual Studio, or upgrade your Unity project to use a newer version of IL2CPP.
Conclusion
If you are having trouble extracting resources needed by IL2CPP, there are a few things you can try. First, make sure that you have the latest version of the Unity Editor installed. If that doesn’t work, try deleting the Il2CppOutputProject directory and rebuilding your project. Finally, if all else fails, you can try manually extracting the needed files from the Unity Editor installation directory.
Further Reading
If you’re having trouble extracting resources needed by IL2CPP, there are a few things you can try. First, make sure you have the latest version of Unity installed. If you’re still having trouble, you can try deleting your Unity preferences file. The file is located at
If you’re still having trouble after trying the above steps, you can check out the Unity forum thread on IL2CPP resource extraction failures. The thread includes a number of helpful suggestions from other users who have encountered the same issue.
