Error with old JMCF Custom field

[Chiara Squilloni]

Hi everyone, I'm going to make the upgrade from jira 6.4 to jira 7.1

We find out that some custom field JMCF in this knew version give error.

In the old version I have a Calculated Date/Time Field that in the description has a refer on a transition <!-- @TransitionId: 131 -->

In the new version I have Calculated (scripted) Date/Time Field (JMCF app) and in the default configuration I have an  error in the Groovy formula and I don't know what place in it! The formula is empty!