I get the Error 1706. No valid source could be found for product Adobe Photoshop Lightroom 5.4. The windows Installer cannot continue. then I get a Fatal Error Message that the Lightroom 5 catalog.lrcat as a last step in the process. I don't know where to go from here. If I can't reinstall a previous version and then upgrade what can I do.
I tried reinstalling the earlier version v3 and then upgrading, but I can't do that either.
When I try to reinstall Photoshop Lightroom v3 it gets through most of the download and then says that the Object already exists
but I can't find it anywhere on my system.