descompilar apk

ola pessoal...estou aqui para pedir a ajuda de vcs....estou tentando descompilar um apk com o apktool.....quando vou tentar descompilar aparece essa msn abaixo...
obrigado e aguardo resposta

" I: Loading resource table...
Exception in thread "main" brut.androlib.AndrolibException: Could not decode arsc file
at brut.androlib.res.decoder.ARSCDecoder.decode(ARSCDecoder.java:54)
at brut.androlib.res.AndrolibResources.getResPackagesFromApk(AndrolibResources.java:604)
at brut.androlib.res.AndrolibResources.loadMainPkg(AndrolibResources.java:74)
at brut.androlib.res.AndrolibResources.getResTable(AndrolibResources.java:66)
at brut.androlib.Androlib.getResTable(Androlib.java:49)
at brut.androlib.ApkDecoder.decode(ApkDecoder.java:93)
at brut.apktool.Main.cmdDecode(Main.java:169)
at brut.apktool.Main.main(Main.java:85)
Caused by: java.io.IOException: Expected: 0x001c0001, got: 0x00000000
at brut.util.ExtDataInput.skipCheckInt(ExtDataInput.java:48)
at brut.androlib.res.decoder.StringBlock.read(StringBlock.java:43)
at brut.androlib.res.decoder.ARSCDecoder.readPackage(ARSCDecoder.java:95)
at brut.androlib.res.decoder.ARSCDecoder.readTable(ARSCDecoder.java:81)
at brut.androlib.res.decoder.ARSCDecoder.decode(ARSCDecoder.java:49)
... 7 more "