System.Overflow.Exception
When I try to decompress the file, this happens. Any idea how to fix this?
5037_zuka_battle_raw_h.zip
The exception is thrown on this line:

The directoryCount variable takes a negative value, which is why an exception occurs.
This happens with bundles whose version is 2019.4.15f1
This means that the bundle has a new format which unfortunately I don't know.
The exception is thrown on this line:
The
directoryCountvariable takes a negative value, which is why an exception occurs. This happens with bundles whose version is2019.4.15f1This means that the bundle has a new format which unfortunately I don't know.
Well okay then. Thanks for the reply anyway.
Pay me no mind if you think I'm asking unrelated questions. Is there a traditional way to open an .assetbundle file in unity, or the file format is just made so that it's very difficult to get access to?
can you add 2019.4.15f1 my game uses this version
can you add 2019.4.15f1
Sorry, but I can't atm, because I don't know the format of the bundle.
... Is there a traditional way to open an .assetbundle file in unity ...
No, unity will not open the .assetbundle, because it's not a source file.
... the file format is just made so that it's very difficult to get access to?
This is most likely true, but maybe it's just a new format in which the bundle header is compressed.
I have a file that can be open with UABE Avalonia 157.zip but when compressing the file back into the game, the game doesn't recognize it.
And here is the file I created from Unity 2019.4.15f1. 157_buzhihuowu_battle_base_low.zip