Originally Posted by DiapDealer
Are you guys using any certain version of Nova Launcher? I got the latest from the Play store (v2.0 I think), got it moved to /system/app and installed ok, but after a reboot, Nova immediately crashes every time I try to choose it.
That happened to me too. What I did next was simply use ES File Explorer to locate the .apk (I still had a copy in /download) and execute it to install it. After THAT it worked.
So basically it is a two step process, first copy to /system/app, change the permissions, and reboot. second, install it like a "regular" app. You don't need to re-copy the .apk to /system/app.
Let us know what happens.