Board Thread:Shadow Fight 2 Discussion/@comment-26958678-20150912111526/@comment-25669516-20161104170907

Which device do you have? There can be two possible reasons for this error:

1. You do not have root and SuperUser rights. To check whether your device is rooted or not you can download a Root Checker from Play Store.

2. If your device is rooted but you still get the error then ensure that you have provided Root Explorer with root access (you can manage these permissions in SuperSu app) or try using another file manager which allows root browsing like E.S File Explorer.