Error message when using transition parent post function

[Marian Nodorf]

Hi, I'm new to JIRA and I'm trying to setup my first custom workflows using the JIRA Misc Workflow Extension. When I add a condition/validator to a parent transition that is triggered via the "transition parent" post function on a subtask, I get the following error message.

rg.ofbiz.core.entity.GenericTransactionException: Commit failed, rollback previously requested by nested transaction.

I searched the web for a solution but didn't find anything that got me closer to my goal. On moving a subtask to "In Progress" I want to switch the parent's state to "In Progress" if none of its subtasks are "Blocked". I'm using a boolean validator on the parent state transition: count(filterByStatus(subtasks(),"Blocked"))=0

Any help would be extremely appreciated 

[Marian Nodorf]

I'm using a 'Boolean validator with math, date-time or text-string terms' for validation, == gives me a parser error.

[Deleted user]

Not sure if you can use this as you are trying to, but looking at what you have here I note;

= is an assignment operator and how you have this setup insures it's always false. Try == instead