Installing CM13 Nightly as MultiRom in TWRP fails I've downloaded cm-13.0-2015-1209-NIGHLY-flo.zip and tried to install it as MultiROM in TWRP 2015-06-30 (v2.8.7.0) on my Nexus 7 (2013 wifi): 

Advanced &rarr; MultiROM &rarr; Add ROM &rarr; Zip File.

But installing fails:



What to I have to do to make the install succeed?
Try this workaround:
http://forum.xda-developers.com/showpost.php?p=63431628&amp;postcount=50

"Delete all the lines after "ui_print("Verifying the updated system image...");" until "show_progress(0.020000, 10);". once you have done it save the file and copy it back into the location inside the rom zip file and flash it on your phone."

Worked for me.