I use the Web Installer to install version 1.7a, select Corporate Site and VB.Net.
I did not change the setting anymore.
After that, I logon to cmsdesk, I want to change the product photo of Product A1 as in the sample Corporate Site. I selected "Product A1", then selected "Edit" on the top toolbar. Then, I clicked "select", and a Popup windows came out. I clicked "Files"->"ProductA1.gif", then "Site" on the top toolbar. Error occurred, it did not allow me to select and preview files!!! I tried version 1.7, no such error. Such error message is as followed:


Server Error in '/MyCMS' Application.
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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.]
Kentico.CMS.CMSDesk.ViewFile.Page_Load(Object sender, EventArgs e)
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +772