I have downloaded the code for the VB version of the book and have encountered many error messages. Some seemed to stem from sections not included in the project. But finally I am stuck with following (and the 72 Build errors which accomapny it)

Error Message:
Object reference not set to an instance of an object.

Error Stack:
System.NullReferenceException: Object reference not set to an instance of an object.
   at Wrox.WebModules.AdsManager.Data.Advertisement.Retr ieveAd(Int32 advertisementId) in C:\wrox\ThePhileVB\WebModules\AdsManager\AdsManage r.Data\Advertisement.vb:line 39
   at Wrox.WebModules.AdsManager.Business.Advertisement. .ctor(Int32 advertId) in C:\wrox\ThePhileVB\WebModules\AdsManager\AdsManage r.Business\Advertisement.vb:line 47
   at Wrox.ThePhile.Web.Controls.User.SiteFooter.Rotator _AdCreated(Object sender, AdCreatedEventArgs e) in C:\wrox\ThePhileVB\Controls\User\SiteFooter.ascx.v b:line 67
   at System.Web.UI.WebControls.AdRotator.OnAdCreated(Ad CreatedEventArgs e)
   at System.Web.UI.WebControls.AdRotator.OnPreRender(Ev entArgs e)
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Page.ProcessRequestMain()

There seems to be no reference to a module called ADsManager in the modules or anyware else.

Could this be anything to do with my having to install the programme in the folder e:\data\web\thPhileVB? Error messages always seem to refer to the C: drive. However many of these are overcome by changing settings in the project which is on E.

Any help would be appreciated.

I have partly solved this problem by completly rebuilding the site from the download and then clicking on include in project on all items that don't appear in the solutions explorer. At least it runs though still reports 100+ build errors. Why the adsmanager files were not extracted first time is a mystery.

I think you made a mistake by including all the files in the projects. The number of errors is not an necessarily indicator of how wrong things are going. You clearly do NOT want all of the files to be included in various projects. The solution and project files in the code download were good, aside from the fact that they are for VS 2002.

Your problem is that you didn't correctly upgrade the solution and projects from VS 2002 to VS 2003. I have addressed this in many messages here. The idea is to delete the .dll and .pdb files and rebuild them. Then you have to fix your references as you go.

Eric