Mistake: an element with id is missing from the page template

hi

I have an mistake an element with id is missing from the page template.

This happend when I create a validator java class on field

BOS 6.4.0

Help me please

Hello,

I didn’t understand your request. Could you please rephrase it ?

In the meantime as you seem starting with your project could you please use the last 6.4.2 version of BonitaBPM ?

Thanks.
BRs
LL