Copied to clipboard

Flag this post as spam?

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


  • Bill Smith 52 posts 222 karma points
    Apr 08, 2013 @ 12:04
    Bill Smith
    0

    Value cannot be null. Parameter name: source

    Monday morning blues!

    Friday evening website worked fine, Monday morning we get this problem:

    Value cannot be null.
    Parameter name: source

    When trying to log into tha admin.

    I have tried: /umbraco/dialogs/republish.aspx?xml=true

    And

    deleted and regenerated umbraco.confi

    But the problem persists, The site is using Umbraco 4.9

    Ideas? Anyone?

    Bill

  • Bill Smith 52 posts 222 karma points
    Apr 08, 2013 @ 12:13
    Bill Smith
    0

    Update:

    /umbraco/dialogs/republish.aspx?xml=true doesn't work, it takes me to the login screen but I can't login in due to the 

    Value cannot be null. Parameter name: source 

    error, so I can't republish the site :(

  • Bill Smith 52 posts 222 karma points
    Apr 08, 2013 @ 16:44
    Bill Smith
    100

    OK, had to restore the Umbraco files (not the database).

  • Carlton Smith 1 post 21 karma points
    Nov 21, 2013 @ 21:03
    Carlton Smith
    0

    I have this same problem. What did you restore your files from?

  • Peter Duncanson 426 posts 1329 karma points c-trib
    Jun 23, 2014 @ 13:08
    Peter Duncanson
    0

    @bill - great that you had this issue and manage to solve it. Sucks that you don't tell us "how" you did it. What was broken, what was the cause and what did you do to actually fix it?

    Having the same issue my self but would love to have know what you actually did. Right now I'm back to the same place you are when you first posted the question so effectively I'm going to have to find the solution again.

    If you get chance and can remember can you update this question with details of what you did. In the meantime I'll keep looking.

    Cheers

    Pete

  • Peter Duncanson 426 posts 1329 karma points c-trib
    Jun 23, 2014 @ 13:28
    Peter Duncanson
    3

    See: http://our.umbraco.org/forum/core/general/50172-unhandled-exception-error-when-trying-to-login

    For me the /config/application.config and /config/trees.config file was zero size, happened over the weekend randomly. None of the files in that folder should be zero size. Uploading a version of my dev site fixed it. If you don't have a dev site I suggest you borrow a file from a clean install of Umbraco (make sure its the same version as the site you are running on to avoid any quirks). It might not have everything you need but should get you up and running.

    Logged this as a bug in the issue tracker: http://issues.umbraco.org/issue/U4-5126

    Pete

  • Ali Heristchian 10 posts 70 karma points
    Aug 14, 2015 @ 09:05
    Ali Heristchian
    0

    Thank you very much

  • Alex Lindgren 158 posts 355 karma points
    Jan 26, 2016 @ 20:27
    Alex Lindgren
    0

    I had the same issue that you described, except application.config wasn't empty - it was filled with bad data:

    enter image description here

    I fixed it like Peter did by copying the file from our dev site.

  • Miguel 11 posts 83 karma points
    May 17, 2019 @ 13:28
    Miguel
    1

    Thanks Pete. A few years later and we just had this issue on a client site. That fixed it.

Please Sign in or register to post replies

Write your reply to:

Draft