How to autowire VariableService

I have a Spring Boot project in which I use flowable.

When I autowire VariableService I am getting the following error

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APPLICATION FAILED TO START
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Description:
Field variableService in com.shoppertrak.va.service.TaskHelperService required a bean of type 'org.flowable.variable.service.VariableService' that could not be found.

Action:
Consider defining a bean of type 'org.flowable.variable.service.VariableService' in your configuration.

How can I instantiate the VariableService in this case?