I’ve been having an error on Custom Made ROM: Kitkat 4.4.4 – “Insufficient Storage available”
If application gives you this error, please do as mentioned below.
Root browser needed.
For avoiding this error:
1. go to “/data/app-lib/APP-PATH(that has this error)/lib” and delete.
2. install/update the apk app.
3. if not work go to “/data/app-lib/APP-PATH(that has this error)” and delete all the folder (but you must begin by their sub-folder then the folder itself, because you cant delete the folder of this APP-PATH directly without deleting their sub-folder first.
* I just deleted the Full App folder and it did it.
Donate the guy who solved this error: baha76_s
Source: GUIDE – Thank you for this awesome guide.