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  • Phil Dye 147 posts 302 karma points
    Oct 16, 2013 @ 19:39
    Phil Dye
    0

    Exception when using legacy log4net

    For legacy reasons with another component in a site, we need to use two versions of log4net, as documented elsewhere (sorry, don't have the link to hand).

    This causes a YSOD from UrlTracker when it's trying to init log4net;

        Exception message: Sequence contains more than one matching element
   at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)
   at InfoCaster.Umbraco.UrlTracker.Helpers.UrlTrackerLoggingHelper.LogToLog4net(String message, Exception exception)
   at InfoCaster.Umbraco.UrlTracker.Helpers.UrlTrackerLoggingHelper.LogInformation(String message)
   at InfoCaster.Umbraco.UrlTracker.Modules.UrlTrackerModule.Init(HttpApplication context)

    Looks like a simple .First() would suffice in

     if (!UrlTrackerLoggingHelper._log4netAssemblyInitialized)
    UrlTrackerLoggingHelper._log4netAssembly = Enumerable.SingleOrDefault<Assembly>((IEnumerable<Assembly>) AppDomain.CurrentDomain.GetAssemblies(), (Func<Assembly, bool>) (x => x.FullName.StartsWith("log4net")));

    in case there's more than 1?

    Phil

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  • Stefan Kip 1606 posts 4098 karma points c-trib
    Oct 16, 2013 @ 19:45
    Stefan Kip
    100

    Yes you're right, thanks for reporting this.
    Could you try version 2.2.5?

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  • Phil Dye 147 posts 302 karma points
    Oct 16, 2013 @ 20:00
    Phil Dye
    0

    Thanks Stefan, that's fixed it.

    And what an awesome turnaround speed on the fix by the way - H5YR!

    Phil

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  • Stefan Kip 1606 posts 4098 karma points c-trib
    Oct 16, 2013 @ 20:16
    Stefan Kip
    0

    Just doing the best I can ;-) Still got a few non-answered topics left, but this was a really easy fix.

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