URL '{0}' is being used with a distinctive category at multiple locations within the file.
Explanation:
With each asset, such as a URL, a category is maintained so that the asset can be displayed in the right place. This means that an asset can only have one category, which means that the same category must be mentioned for each article where the asset is listed. If different categories are listed this error message will occur.
Solution:
Find all articles in the import file where the URL is mentioned and place at the URL one and the same category.
