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  • Mayfly Media 12 posts 177 karma points
    Apr 30, 2012 @ 21:27
    Mayfly Media

    Media Type property causing exception on legacy media items

    I've added an Alt Text property to the Image media type in a 4.7.1 installation, however legacy media items (i.e. images that were in the media library before I added the property) now can't be loaded in the medi tree as it throws the following exception:

    Value cannot be null.

    Parameter name: Property altText (689) on Content Type Image could not be retrieved for Document 1085 on Tab Page Image. To fix this problem, delete the property and recreate it.


    I don't want to remove the property as this will erase all of the data for the alt text that our client has added to the new media items.  

  • Keith Jackson 183 posts 552 karma points
    Apr 30, 2012 @ 23:35
    Keith Jackson

    Is it specified as cannot be null and, if so, does the problem go away if you allow it to be null?

  • Carl 65 posts 87 karma points MVP 2x
    Apr 30, 2012 @ 23:57

    <!-- Ignore post - this was not the issue I was thinking --> 

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