hi all,

i'm new in mojoportal. i installed mojoportal, it has no problem. working good. but when i want to add photo (in a document or in to photo galleri) i got that problem. i re-installed mojoportal but problem is still contiuning. i read a lot of document on the site, i think its about "mediumtrust" but i couldn't find any solution. (actually i couldnt find any web.mediumtrust.config file anywhere)

using mssql
using mojoportal 4

here is the problem:

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.]
mojoPortal.Web.GalleryUI.GalleryImageEdit.btnUpdate_Click(Object sender, EventArgs e) +294
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