# Runtime execution variable is not getting created in the act\_ru\_variable table

**URL:** <https://forum.flowable.org/t/runtime-execution-variable-is-not-getting-created-in-the-act-ru-variable-table/10679>\
**Category:** Flowable Engine\
**Created:** [July 12, 2023, 9:06am UTC](https://forum.flowable.org/t/runtime-execution-variable-is-not-getting-created-in-the-act-ru-variable-table/10679 "2023-07-12T09:06:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![gurusha](https://avatars.discourse-cdn.com/v4/letter/g/c5a1d2/32.png) [@gurusha](https://forum.flowable.org/u/gurusha)\
**Post date:** [July 12, 2023, 9:06am UTC](https://forum.flowable.org/t/runtime-execution-variable-is-not-getting-created-in-the-act-ru-variable-table/10679/1 "2023-07-12T09:06:27Z")

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Hi,

I am facing the following issue for few of the process instances where runtime execution variable is not getting created in the act\_ru\_variable table and as a result receive task is failing with the attached stack trace  
`"message":"Error occurred while processing ,org.flowable.common.engine.api.FlowableException: Unknown property used org.flowable.common.engine.impl.AbstractEngineConfiguration.lambda$new$0(AbstractEngineConfiguration.java:195)\n\tat org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:130)\n\tat org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:114)\n\tat org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:72)\n\tat org.flowable.engine.impl.interceptor.BpmnOverrideContextInterceptor.execute(BpmnOverrideContextInterceptor.java:26)\n\tat org.flowable.common.engine.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:53)\n\tat org.flowable.common.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:105)\n\tat org.flowable.common.spring.SpringTransactionInterceptor.lambda$execute$0(SpringTransactionInterceptor.java:57)\n\tat org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)\n\tat org.flowable.common.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:57)\n\tat org.flowable.common.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)\n\tat org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)\n\tat org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51)\n\tat org.flowable.engine.impl.RuntimeServiceImpl.trigger(RuntimeServiceImpl.java:468)\n\tat com.cleartrip.athithi.pubsub.consumer.ExtranetDedupResultDLQListener.receiveMessage(ExtranetDedupResultDLQListener.java:49)\n\tat com.google.cloud.pubsub.v1.MessageDispatcher$4.run(MessageDispatcher.java:395)\n\tat java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)\n\tat java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)\n\tat java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\n\tat java.base/java.lang.Thread.run(Thread.java:829)\nCaused by: org.flowable.common.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'isUnique'\n\tat org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstIdentifier.eval(AstIdentifier.java:97)\n\tat org.flowable.common.engine.impl.el.JuelExpression.getValue(JuelExpression.java:52)\n\t... 30 common frames omitted\n"}`