Pages library migration error : An item with the same key has already been added
説明
Error on all pages library. Error: Server was unable to process request. ---> An item with the same key has already been added.
All source page libraries have custom content types used in the page layouts.
原因
Special page customization at source sharepoint.
対策
1. Provided transformer script (This transformer script is not part of this KB article. Please contact Support for considering provisioning the applicable script)
2. Combination of copying structure then content invoking the script worked.
