Comment 6 for bug 524811

This is just version skew between the kernel and linux-backports-modules and in development is common due to the required upload order of the kernel packages. The kernel must hit the archive before we can build the LBM packages as they require the headers packages from the linux. However until LBM is then uploaded built linux-meta will trigger this error. When this is seen you should find you are recommended to not apply the updates by apt. Once LBM (now uploaded) hits the archive the upgrade should apply correctly.