I've programmed a small application in visual studio 2012 using VB.NET 3.5 framework. It was running perfectly when I last modified the project, and published it. However today when I go in and try to run the code I get an error (see pic/below). I don't know what's causing this. Nothing has changed in the project since it was last published, this just seems to have suddenly happened!
Can anyone explain what's happened, and how to resolve it?
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