What does this error mean?

[HeXen]

an app i use called Savegame backup, which backs up my game saves, has an issue where it does not display my Deus ex 3 saves so that i can restore them.
the error log shows this

Object reference not set to an instance of an object.

So what would this mean exactly?
i assume object being the deusexgamesave?

 

[Nothinman]

It could refer to anything really, an object in object oriented programming languages is pretty much every variable. So when you create a string to store a path that's an object of type String and if you try to use it before it's created or after the creation fails you'll see a similar error and the program will crash.

It's essentially a bug in the program that you're hitting and the real fix is to give the developers enough information for them to reproduce and fix it. Depending on what you're doing to cause the crash, you may be able to figure out what it's failing to create and work around it, but that will probably require a lot of trial and error since you don't have the source.

 

[HeXen]

It could refer to anything really, an object in object oriented programming languages is pretty much every variable. So when you create a string to store a path that's an object of type String and if you try to use it before it's created or after the creation fails you'll see a similar error and the program will crash.

It's essentially a bug in the program that you're hitting and the real fix is to give the developers enough information for them to reproduce and fix it. Depending on what you're doing to cause the crash, you may be able to figure out what it's failing to create and work around it, but that will probably require a lot of trial and error since you don't have the source.

well see its not crashing. it does show a list of "Most" of my other games and restores them fine.
There is like 3 i think games that will not show up on the list. So i took that error code from the Log file it creates.

When it backs up gamesaves, it puts them in a ***.sgbzip file.
I tried to change it to just .zip and open it with Winrar but shows nothing.

so basically i can't figure out how to uncompress it.