Move to META_INF > COM > GOOGLE > ANDROID by extracting the rom.
Here you will find a file "updater-script". Rename this file as updater-script.doc (microsoft word format) or use notepad++ (preferably)
(in some pc, extensions are nor visible. to make them visible, follow these steps)
Open Folder Options by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, and then clicking
Click the View tab, and then, under Advanced settings, do one of the following:
To display file extensions, clear the Hide extensions for known file types check box, and then click OK.
Double click to open it( microsoft word preferred)
delete text, starting from "assert ....... till the semicolon ( of the last getprop command).
(See the image in the attached file for carefully deleting the lines. Click this link.)
Save the file now.
Again rename the file, and delete the .doc extention
Now go back and zip these files again. and you will get a zipped rom.
And the status 7 error has now been removed!