# New Input System

DevTool support old and new input system out if box.

If you use New Input System, you need to add New Input System assemby defenition to DevTool assemby defenition references.

{% hint style="info" %}
After installing New Input System or importing DevTool in project with New Input System, you may have compilation errors, don't worry, this is normal, after performing these simple steps, it will be automatically corrected. 
{% endhint %}

In Project widnow, in search field write `DevTool` and find two assembly definition file 

* **DevTool**
* **DevTool.UI**

![](/files/9cx4xS7CtpWO34Ucl469)

Select each of them and in **Assembly Definition References** section add  Unity.InputSystem definition and click Apply.

![](/files/fMFKM7s64yJttwpze9jt)


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