When you “remove” a package from your project, the Package Manager is actually removing the project’s direct dependency from your project manifest. The result of removing the direct dependency varies, based on the dependencies for the package you are removing:
Make sure you understand these important notes before you begin:
1.打开 Package Manager 窗口，然后从 Packages 下拉菜单中选择 In Project。
![Switch the context to **In Project**](../uploads/Main/upm-ui-inproject.png)
Click the Remove button. If this button is:
If you want to restore a removed package, follow the instructions for installing a package.
Note: You can remove multiple packages with one click by using the multiple select feature. For more information, see Perform an action on multiple packages or feature sets.
You can only remove packages which are not required by another package or a feature set. The Package Manager enforces this by disabling the Remove button for all required packages.
|A feature set||If a feature set requires the package, it displays a lock icon () both in the list view and in the details view. The details view also displays the name of the feature set that requires the package below the package name in the details view.
However, even if you click the Unlock button, you still can’t remove the package from your project until you remove all feature sets which require it. Unlocking the package lets you request a different version for your project, but it still doesn’t let you remove it.
|Another package||If one or more packages require the selected package, the Remove button is disabled. You can find the name of the package that has the dependency from the Dependencies section of the details view. If you don’t need the other packages, you can remove them and the Package Manager automatically removes this package too.|
Tip: If you don’t see the Dependencies section, follow these instructions to enable the Show Dependencies setting:
Select Advanced Project Settings under the advanced settings icon.
Package Manager 项目设置窗口出现。
Under the Advanced Settings group, enable the Show Dependencies option.
Close the Project Settings window. Any packages that are only installed as dependencies in your project now appear in the package list and the detail view now displays a Dependencies section.
Note: You can unlock multiple packages with one click by using the multiple select feature. For more information, see Perform an action on multiple packages or feature sets.