Flasher flash_rootfs stuck at "sending 'system'"

Created by: RicardoEPRodrigues

I have a Nexus 7 2012, after building the OS with Mate DE, I ran:

./pmbootstrap.py -v flasher flash_rootfs

This is the result:

[22:53:07] (native) flash rootfs image
< waiting for any device >
FAILED (data write failure (Protocol error))
finished. total time: 1051.761s
target didn't report max-download-size
erasing 'system'...
OKAY [  0.147s]
sending 'system' (716800 KB)...

Is it because the size is too big for the devices?