Path to object does not exist. First missing component is [file directory], the whole lookup name is [jdbc/directory/file name].

Hi Experts ,

When i click the webdynpro application through portal link.it show below error.

"Path to object does not exist. First missing component is [file directory], the whole lookup name is [jdbc/directory/file name]."

kindly help me on this .

kind regards,

Rajesh N