Facebook.Unity.Windows/UnityReferences/2021.xml (11 lines of code) (raw):
<ItemGroup>
<Reference Include="UnityEngine">
<HintPath>$(UNITY_ENGINE_DIR)UnityEngine.dll</HintPath>
</Reference>
<Reference Include="UnityEngine.JSONSerializeModule">
<HintPath>$(UNITY_ENGINE_DIR)UnityEngine.JSONSerializeModule.dll</HintPath>
</Reference>
<Reference Include="UnityEngine.CoreModule">
<HintPath>$(UNITY_ENGINE_DIR)UnityEngine.CoreModule.dll</HintPath>
</Reference>
</ItemGroup>