This conversation has been merged. Please reference the main conversation: Lightroom: Could not upgrade your catalog for plug-in metadata.
I had this problem myself, and got through it simply by removing custom metadata definitions and then adding them back, exactly as they were, one at a time, reloading the plugin and approving catalog update after each. I obviously can not expect my clients to do the same.
PLEASE fix this before releasing Lr4.1 final!!!
Note: There's nothing wrong with the metadata definitions (I'm not sure if there would be a problem when installing a version of the plugin that has the exact same metadata definitions as last time, but certainly if the new definitions have had a few extra fields defined there can be trouble), there is something wrong with Lr4 - all dot versions so far, and beta.
This problem occurs on both Windows and Mac.
2 plugins that have drawn a lot of complaint are:
- DevMeta (installing new version with additional fields for PV2012 when they previously had version installed that did not have the additional fields)
- CustomMetadata (e.g. when trying to add additional custom fields).