Eclipse tomcat out of sync autobiography

After Eclipse starts tomcat, no error is reported and the project is not loaded into the webapps folder under tomcat
Solution:
1. On the server page in eclipse, double-click the tomcat service, as shown below
After double-clicking, you will see the configuration page as shown in the figure below:

2.

You can see that the default selection in the red circle is
Use workspace metadata(does not modify Tomcat installion)
3.

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If the project is deployed in the tomcat, the options in the red circle will be grayed out and cannot be modified. To modify, you must first remove all deployed services in tomcat. Select by right clicking on the tomcat server
Add and Remove, remove the deployed project in the pop-up dialog box.

After the removal is confirmed, if it still cannot be modified, you may right-click the tomcat server and select clean, and then you can see that