Anyone has the same problem with Windows Phone 8.1?
- The type or namespace name 'FileStream' does not exist in the namespace 'System.IO' (are you missing an assembly reference?)
- The name 'FileMode' does not exist in the current context
- The name 'FileAccess' does not exist in the current context
- 'System.IO.StreamReader' does not contain a definition for 'Close' and no extension method 'Close' accepting a first argument of type 'System.IO.StreamReader' could be found (are you missing a using directive or an assembly reference?)