The asset requires the "com.unity.nuget.newtonsoft-json" package (Json.NET) to function.

If you download Json.NET from another source or use the built-in Unity version, the asset is likely not going to work.

After installing Json.NET through the Package Manager, check if Figma Converter recognizes this dependency.

Open the asset's "Dependency Manager" through the context menu.

If Json.NET is installed correctly, you will see that this dependency is marked as "ENABLED."

In the slides below, you will find instructions for installing Json.NET using the Package Manager.

To install "Json.NET", open the Unity Package Manager.

Click on the "+" button, and then, in the menu that appears,

click on "Install package by name" menu item.

Enter the package name "com.unity.nuget.newtonsoft-json" and click on the "Install" button.

As an alternative, you can use the "Install package from git URL" function.

After installing Json.NET, you can continue using the asset.