"yum update" error. How to handle this?
Solution 1:
You have an incompatible repository "rpmforge". This only works on RHEL and clones, and isn't compatible with Amazon Linux (which used to be a RHEL clone, but isn't anymore).
You have a couple of options:
Remove the rpmforge repository and try again. Note that you might not be able to do this if you actually need packages from this repository.
The preferred option: Stop using Amazon Linux. Our pages are full of questions from people whose problems were directly traceable to quality control problems in Amazon's packages.