Problem: When you run or debug a project, a Plug-in Validation
dialog is displayed with the error, "Plug-in xxx1 will be disabled. Required
plug-in xxx2 is missing."
Solution: Add the required plug-in
xxx2 to the launch configuration.
Do one of the following:
To run or debug the projects using the Client Services launcher:
Select Run > Run or Debug > Debug from the menu.
From the left panel, click the Client Services configuration you are using.
Click the Plug-ins tab, and then click the Add
Required Plug-ins button.
Click Apply to save the changes.
To run or debug the project using the Run on Server feature:
Change to the J2EE perspective, and open the Servers view.
Double-click the server you are running to edit it.
Click the Advanced button to bring up the launch
configuration
Click the Plug-ins tab, and then click the Add
Required Plug-ins button.