FirePower onboarding to FMC first policy deployment failure

[emurray]

I am trying to lab FMC deployment with the 90 evaluation. I added two virtual Firepower's to FMC but the starter policy that you must create when adding them, fails to deploy with the message "The deployment failed because the deployment packages did not download to the device".  I have looked through the internet and found nothing about it. I even started from zero again and still have the same error. 

My policy was set to discovery so there should not be any problems. 

Any help is welcome

[emurray · Accepted solution]

I managed to fix the issue. I entered broth firewalls and enabled some interfaces that I needed for the lab, then I deployed the changes again and this time it was successful.