Web Forms :: Can't Find Master Page?

Nov 18, 2010

I have two web sites, one is a copy of the other.A page that exists in each website references a master page like this:MasterPageFile="~/Dealermaster.Master"This works fine in one site, but not the other. The master page exists in the root dir of both sites. The pages are in a dir called /Pages. If I copy the master page into the /Pages dir and remove the "~/" it works fine. I am debuging both sites in Cassini.

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May 7, 2015

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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: 

Line 13:
Line 14: (this.Master.FindControl("ADMenuMessage") as HtmlGenericControl).Style["background-image"] = Page.ResolveUrl("~/Image/ADactivmenu.png");
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Line 17: }

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[Code].....

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[Code]....

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[Code]....

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[Code]....

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[Code]....

[Code]....

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So far I have got

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