android - Lose saved data on app update -

when creating new version of unity3d app, tested sideloading new version on top of from-the-store install. sideloaded app no longer able find files saved from-the-store version.

it seems though issue application.persistentdatapath differs between 2 app versions.

under buildsettings:

install location: prefer external write access:     internal 

the androidmanifest.xml seems have no information install location/write access location.

i wouldn't mind changing install location force internal, if helps update and/or in future. unsure setting does.

i'm saving xml files using c#'s xmlserializer , writing them filestream using application.persistentdatapath.

xmlserializer serializer = new xmlserializer(typeof([class])); filestream stream = new filestream( application.persistentdatapath + "/[filename].xml", filemode.create);     serializer.serialize( stream, [object]);     stream.close(); 

you can try saving xml string in playerprefs so:

playerprefs.setstring("savegamename", yourxml); 

and so:

myxml = playerprefs.getstring("savegamename"); 

in past playerprefs class worked me persistent data. know fact data persists if install new versions app store.

http://docs.unity3d.com/scriptreference/playerprefs.html here docs on it.