regarding implicit enhancement

hi friends,

iam learning enhancement frame work topic.

while iam creating the implicit enhancement,

iam getting a dump error saying that,

" An exception occurred that was not caught."

because of that error iam not able to process further.

iam using the E.C.C 6.0 ERP and the ABAP is Upgraded to Sap Net weaver 7.0(because of HR module the basis people has upgraded ABAP to 7.0.)

can any one tell how to rectify the problem.