FortiClient EMS 7.4.1 OVA Template on ESXi - not enough disk space

[helpIT-Hartmann]

Hi Everyone!

I am testing EMS for FortiClient VPN depolymant and have depoloyed the ova image of EMS 7.4.1 on my esxi and switched to multi site management. I tried to create a deployment package to deploy FortiClient via invention. 

At the final step (4) of the Installer package creation process i get the following error: failed to create deployment package: not enough disk space.

It does not depend if i use multi site configuration or not. i tried both. Same error.
The Interface tells me, that there is 30% free space availible. 
Has anyone encountered the same error and has a fix?

Regards,
Thomas