apktool b framework.jar.out/
I: Checking whether sources has changed...
W: Could not find resources
I: Building apk file...
Exception in thread "main" brut.androlib.AndrolibException: brut.common.BrutException: could not exec command: [aapt, p, -F, /Users/datagutt/Documents/miui4.1_sgs3/miui/system/framework/framework.jar.out/dist/framework.jar, /Users/datagutt/Documents/miui4.1_sgs3/miui/system/framework/framework.jar.out/build/apk]
	at brut.androlib.res.AndrolibResources.aaptPackage(AndrolibResources.java:251)
	at brut.androlib.Androlib.buildApk(Androlib.java:438)
	at brut.androlib.Androlib.build(Androlib.java:196)
	at brut.androlib.Androlib.build(Androlib.java:175)
	at brut.apktool.Main.cmdBuild(Main.java:182)
	at brut.apktool.Main.main(Main.java:67)
Caused by: brut.common.BrutException: could not exec command: [aapt, p, -F, /Users/datagutt/Documents/miui4.1_sgs3/miui/system/framework/framework.jar.out/dist/framework.jar, /Users/datagutt/Documents/miui4.1_sgs3/miui/system/framework/framework.jar.out/build/apk]
	at brut.util.OS.exec(OS.java:83)
	at brut.androlib.res.AndrolibResources.aaptPackage(AndrolibResources.java:249)
	... 5 more