JIRA Porfolio 1.10 is not working fine with jira6

[NehaNagori]

I have installed version of JIRA6. And i have added a plugin of jira portfolio 1.10. JIRA portfolio 2 is not compatible with our JIRA. 

Problem : I imported the issues in JIRA portfolio. Issues are getting import but without epic. All issues are getting import under one unnamed epic.

Is there any solution to this? or any suggestions?

[NehaNagori]

JIRA Portfolio 1.10.2 and greater is compatible with jira 6.1. I have JIRA 6.1.3. Sorry I had written it wrongly in my question.

[Vishnukumar Vasudevan]

JIRA Portfolio 1.10 wouldn't be compatible with JIRA 6.0.x. Please cross check the combatibility here