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You can find a lot of debugging and deploying problems while developing applications in .NET and Visual Basic here. There are also some querying tips in SQL and typical source codes which might be useful shared here.

Error connecting to undo manager of source file

Error : Error connecting to undo manager of source file.
This error occur when debugging a web application on

Solution :
1. Delete the aspx.designer.cs file
2. Right-click the aspx, select convert to web application.

There are 3 layers (that's how I call it) on web application, i.e. Design layer(.aspx), Coding layer(.cs), and the other one is the layer that contains all the Components used in Design layer(.aspx.designer.cs).

I code more than dragging elements to the page while working on the design of a web page. Sometimes, the Components layer doesn't synchronize well with the design layer, so some elements used in the design layer are not created properly. Deleting the .aspx.designer.cs and converting to web application will create a new file, thus all the elements will be created more properly.
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