Updates:
Status: Invalid
Comment #1 on issue 1692 by srowen: Barcode scanner not working
http://code.google.com/p/zxing/issues/detail?id=1692
You haven't given any information at all, like a stack trace. It's
impossible to help without any info, so, please add something here, or just
report it through the normal crash report mechanism. Right now I don't see
any repeatable errors with this version of the app. This usually means a
bad device, so try restarting.