APKtools (APK Studio) Could not decode arsc file
You must have to download apktoo_2.0.0rc file. then after You can decompile your apk file and will not get arcs file error.
You can download latest file version from Here
Now Rename your "apktool_2.0.0rc4.jar" to "apktool.jar".
Now delete old "apktool.jar" file from your apktool folder.
UPDATE:
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For Windows users, it's located in:
C:\Users\yourusername\.apkstudio\vendor
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Now put this new "apktool.jar" file in your apktool folder where old "apktool.jar" was placed.
now same run your cmd commands like apktool if framework-res.apk
and next
apktool d "your appname.apk without quotes"
and keep smile..
For me, 2.0.0 versions had same issue, but 2.0.3
solves the problem.
Download newest apktool.jar version at https://bitbucket.org/iBotPeaches/apktool/downloads (apktool owner's repository)
I got the same problem with version 2.0.0. I updated to version 2.1.1 and the problem disappeared.