Unable to upload game via application loader!

[RP_Games]

I get the following errors when trying to submit my app through application loader:

1: Apple's web service operation was not successful

2: Unable to authenticate package: 724054635.itsmp

3: ERROR ITMS-9000: "This bundle is invalid. The file is not a valid application bundle." at SoftwareAssets/SoftwareAsset(MZItmspSoftwareAssetPackage)

I really doubt it has anything to do with my certificates or anything, since I've retried the process multiple times. Any ideas here?

[momatic]

I've had the same problem when I entered the wrong names (for BundleIdentifier and for BundleName) in the UDKGameOverrides.plist
C:\UDK\UDK-2013-07\UDKGame\Build\iPhone\UDKGameOverrides.plist
now everything is ok!