You can disable a Built-in packageBuilt-in packages allow users to toggle Unity features on or off through the Package Manager. Enabling or disabling a package reduces the run-time build size. For example, most Projects don’t use the legacy Particle System. By removing the abstracted package of this feature, the related code and resources are not part of the final built product. Typically, these packages contain only the package manifest and are bundled with Unity (rather than available on the package registry). See in Glossary if you don’t need some modules and you want to save resources. However, when you disable a built-in package, the corresponding Unity functionality is no longer available. This results in the following:
If you use a Scripting API implemented by a disabled package, you get compiler errors.
Components implemented by the disabled built-in package are also disabled, which means you cannot add them to any GameObjectsThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info See in Glossary. If you have a GameObject that already has one of these components, Unity ignores them in Play mode. You can see them in the InspectorA Unity window that displays information about the currently selected GameObject, Asset or Project Settings, alowing you to inspect and edit the values. More info See in Glossary window but they are greyed out to indicate that they are not available.
When building a game, Unity strips all disabled components. For build targets which support engine code stripping (like WebGL, iOS, and Android), Unity doesn’t add any code from a disabled built-in package.
To disable a built-in package:
Open the Package Manager window and select Built-in packages from the package scope drop-down menu.
Select the built-in package you want to disable. Its information appears in the details view.
Click the Disable button.
When the progress bar finishes, the check mark no longer appears next to the built-in package and the Disable button becomes an Enable button.
If you want to re-enable a disabled built-in package, click the Enable button.
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