"Error" While Installing ROM [HELP]

Hi,
Today I've seen this post "http://forum.xda-developers.com/galaxy-s3-mini/orig-development/rom-omnirom-gt-i8190-s3-mini-t2969867/page117"
and really interested to install it in my mobile. But unfortunately, there is some error, I'm facing. :/ Hope someone will help..


Whenever I choose the ROM file and install:

Code:

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Updating partition details...
Installing '/External_sd/omni-5.1.1-20150816-golden......
checking for MD5 file...
Skipping MD5 check: no md5 file found
Apply parsedPerms: removexattr of /system/bin/bac..
set_metadate: some changes failed
E:Error executing updater binary in zip '/external
updating partition details...

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Hope someone help ASAP. :/