UnauthorisedAccessException on Android #1

Thank you for sharing this package. it works well on editor. but when i built it for android and run application in android device it gives.
"UnauthorisedAccessException: Access to path "/" is denied."

it is strange because file is present at this path and i can read the file via read all text. but it gives me error when i pass the same file path to "ExecuteFile()"

Thanks