When using MyEclipse, add a deployment project with Tomcat error, or start tomcat error

The selected server is enabled,but isn't configured properly.deployment to it won't be permitted until the problem is Corrected.please navigate to the Server preference pages and verify the field with the Prompt:tomcat JDK name:

Translation: The selected server is enabled, but the configuration does not have the correct configuration number. Until the problem is resolved correctly, it can be deployed. Navigate to the Server Options page and check the prompt: Tomcat's JDK Name field

A configuration error occurred during startup. Verify the Preference field with the Prompt:tomcat 6.x JDK name:

Translation: A configuration error occurred during the startup process. Please verify priority areas with hints: Tomcat 6.x JDK name:

Error cause 1:tomcat path configuration error, reconfigure the correct path, select Windows==>preferences==>myeclipse==>application servers== in the MyEclipse toolbar >tomcat6x (Choose your JDK directory), some do not have to manually add the JDK path, click the Down button to add the JDK path name directly, and then determine.

Error cause 2:tomcat 6.x there is a directory JDK point open to see if the selected is like a red circle, if not the same point open Select this option

When using MyEclipse, add a deployment project with Tomcat error, or start tomcat error