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  • Martin Lingstuyl 202 posts 379 karma points
    Feb 17, 2014 @ 20:42
    Martin Lingstuyl
    0

    After upgrade TaskScheduling Tree remains empty

    Hi robert,

    I upgraded a website from 4.7.2 to 6.1.6. But now it gives the following error when reloading the scheduled tasks. I changed the ClientDependency and emptied the folder, but it doesnt work.

    The scheduled tasks that were set, seem to be running though. So no problems on that part. Would you have any idea what to do with this?

    thanks!

    Martin

     

    [NullReferenceException: Object reference not set to an instance of an object.]

       umbraco.cms.presentation.Trees.JsTreeNodeConverter.Serialize(Object obj, JavaScriptSerializer serializer) +130

       System.Web.Script.Serialization.JavaScriptSerializer.SerializeValue(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat) +85

       System.Web.Script.Serialization.JavaScriptSerializer.SerializeEnumerable(IEnumerable enumerable, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat) +126

       System.Web.Script.Serialization.JavaScriptSerializer.SerializeValueInternal(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat) +1380

       System.Web.Script.Serialization.JavaScriptSerializer.SerializeValue(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat) +194

       System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, StringBuilder output, SerializationFormat serializationFormat) +26

       System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, SerializationFormat serializationFormat) +74

       umbraco.businesslogic.Utils.JSONSerializer.Serialize(Object obj) +11

       umbraco.cms.presentation.Trees.XmlTree.ToString(SerializedTreeType type) +97

       umbraco.cms.presentation.Trees.XmlTree.ToString() +12

       umbraco.presentation.webservices.TreeDataService.ProcessRequest(HttpContext context) +132

       System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100

       System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

  • Richard Soeteman 3616 posts 11026 karma points MVP
    Feb 18, 2014 @ 07:05
    Richard Soeteman
    100

    Hi,

    The tree was first stored in the database, now it's in the trees.xml config file. Might be best to just run the installer again to fix this.

    Best,

    Richard

  • Martin Lingstuyl 202 posts 379 karma points
    Feb 18, 2014 @ 13:53
    Martin Lingstuyl
    0

    That was it.

    thanks.

     

    Martin

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