Which operating system are you using?
Try using the 6.7 camera raw download from below:
I tried that.
Sent from my iPhone
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I was getting the same error message this am after doing a reinstall of CS5 to a new laptop. Nothing would upate. I read a post on here that said to manually install each component, bridge. raw, etc. When I downloaded the updates from the adobe support dowload, they went thru perfectly. It just took a while since I had 5 updates to do one at a time!