When i switch platform on build setting :
And : '“Files\Unity\Hub\Editor\2019.2.0f1\Editor\Data\Resources\PackageManager\BuiltInPackages\com.unity.ugui\Runtime\EventSystem\InputModules\BaseInput.cs(104,24): error CS0246: The type or namespace name ‘Touch’ could not be found (are you missing a using directive or an assembly reference?)”
Help please :c