Hi,

I have installed blog 4 umbraco on umbraco 4.6.1.

I'm using webmatrix on win 7

Please help me with this error!

When i tried to create the first blog page in the content view I got this error:

Object reference not set to an instance of an object.Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 

[NullReferenceException: Object reference not set to an instance of an object.]
   umbraco.cms.businesslogic.property.Property.MakeNew(PropertyType pt, Content c, Guid versionId) +322
   umbraco.cms.businesslogic.Content.createNewVersion() +317
   umbraco.cms.businesslogic.Content.CreateContent(ContentType ct) +198
   umbraco.cms.businesslogic.web.Document.MakeNew(String Name, DocumentType dct, User u, Int32 ParentId) +378
   umbraco.contentTasks.Save() +95
   umbraco.presentation.create.dialogHandler_temp.Create(String NodeType, Int32 TypeId, Int32 NodeId, String Text) +384
   umbraco.cms.presentation.create.controls.content.doCreation() +160
   umbraco.cms.presentation.create.controls.content.sbmt_Click(Object sender, EventArgs e) +5
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +118
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +112
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563