Sign in Register
Copied to clipboard

Flag this post as spam?

This post will be reported to the moderators as potential spam to be looked at


  • Pete K 317 posts 56 karma points
    Jun 10, 2013 @ 15:40
    Pete K
    0

    User control error in 4.5.2 -- now fixed?

    I am in the midst of a summer project to upgrade an Umbraco iste from 3.0.5 to version 6 in increments. My current version is 4.5.2. After upgrading and moving the site to a new server, I found that a custom control that I wrote a few years ago no longer worked. I recompiled it, targeting the 4.0 .Net framework, but it started throwing the following error: 

    Error creating usercontrol (/usercontrols/tvlisting.ascx)

    InternalXmlHelper.vb(9): error BC30560: 'ExtensionAttribute' is ambiguous in the namespace 'System.Runtime.CompilerServices'.

    I Googled this and found the following article, which seemed to fit my issue: 

    http://stackoverflow.com/questions/12104883/bc30560-extensionattribute-is-ambiguous-in-the-namespace-system-runtime-comp

    However, I could find no reference anywhere in my project to "ExtensionAttribute". 

    Then I found this thread on this forum: http://our.umbraco.org/forum/using/ui-questions/11217-ExtensionAttribute-is-ambiguous-Why-is-it-not-getting-attention

    So it looks like this was a known issue in 4.5.1 and 4.5.2. Can I assume it has been subsequently fixed? (I plan to continue upgrading the site to the latest 6.x version later this summer.)

    Copy Link
  • Jan Skovgaard 11280 posts 23678 karma points MVP 11x admin c-trib
    Jun 10, 2013 @ 23:08
    Jan Skovgaard
    0

    Hi Pete

    Have you checked that you don't have a reference for some legacy files in your project somewhere?

    /Jan

    Copy Link
  • Pete K 317 posts 56 karma points
    Jun 11, 2013 @ 15:15
    Pete K
    0

    I don't believe so, Jan. The project is a ver simple one -- there is only an ascx and code behind .vb file. 

    Copy Link

  • This forum is in read-only mode while we transition to the new forum.

    You can continue this topic on the new forum by tapping the "Continue discussion" link below.

Please Sign in or register to post replies