Mysterious Eclipse JSP Validation Errors

Question

Eclipse (Helios) occasionally marks valid looking JSP content as having errors. It seems like it often breaks when I use the tag. For example, in a JSP with just th

Answer 1

A much easier way is to

select the project -> Properties -> Java Build Path -> Libraries Tab

Select add Libraries. From there select Server Runtime. It will list all the server runtimes you have configured. From there Select the server runtime you have assosiated your project with.

This will rebuild and revalidate the projece and all this ghost errors will be removed.

Hope this helps.