Creating an extension methods results in an error

Creating an extension methods results in an error

References

Reference NO 1

http://stackoverflow.com/questions/15200751/creating-an-extension-methods-results-in-an-error

Reference NO 2

http://stackoverflow.com/questions/8639214/mvc-extension-method-error

Reference NO 3

http://connect.microsoft.com/VisualStudio/feedback/details/543198/vb-net-project-with-extensions-methods-generates-errors

Reference NO 4

http://msdn.microsoft.com/en-us/magazine/cc163317.aspx

Reference NO 5

http://go4answers.webhost4life.com/Example/iobjectset-include-extension-method-64881.aspx

Reference NO 6

http://www.c-sharpcorner.com/UploadFile/rishi.mishra/extension-methods-in-net/

Reference NO 7

http://synchronicity-life.blogspot.com/2011/12/how-to-create-observable-with-rx-3.html

Reference NO 8

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