General :: Compile / Decompile Using APKTool Or APK Multi Tool

I'm trying desperately to edit some files inside SystemUI.apk and framework-res.apk but I'm having some troubles...

I wanted to post in the specific thread of the program : [URL] but I'm not allowed to, because it's my first post here.

First I used only apktool, I managed to decompile my 2 files with no problems, I replaced a few *.png files and tried to recompile it but I'm getting errors... (I only manage to recompile the files if I don't edit a thing)

Then I tried APK Multi Tool, I achieved to decompile my 2 files (with the option 9 in the program), but I can't recompile them after editing my files. So I decided to make a test, I tried to decompile and recompile (I hit 9 then 11 in the choice case) them WITHOUT changing a thing and I get errors anyway. If I use the choice 1 (only extract the apk), do my editing and then zip the project (with the choice 3), directories are wrong inside the new *.apk, I get "projectsSystemUI.apk(res or smali, etc...)" so the *.apk result is not usable

Here is the log file when I try to recompile WITHOUT changes :

Code:
I: Baksmaling...
I: Loading resource table...
I: Loaded.

[Code]....