Error 42148 - Xar Archive Corrupted

[kassxe]

I am receiving 22 of these warnings on a five day old macbook pro, though I've owned macbooks for years without ever receiving this warning. Anyone have any ideas as to what this is and how I can get rid of it? I've had a hard time finding information about it online. Thank you.

[krahulik]

Hello,
  this is not the best error message, however it means that our unpacker was not capable to verify the content of the concrete XAR archive.

Martin

[kassxe]

What causes this and what can I do about it?

[krahulik]

Well, we buy a third-party unpacker that allows us to scan a file content in a memory not extracting it to a disk. Unfortunatelly, the unpacker cannot handle all the file formats. If these archives are provided by Apple, you can be pretty sure they are OK and you can ignore this warning.