How to Resolve Red line from View Page?

Question

I have red line on view page, I searched about this error and tried too much thing but i did not resolve this issue. My project is build successful but not remove these red lines. These lines are appeared in all view page and Intellisense is not working on view page. Please resolve this issue. I am using system.web.Mvc version 5.2.3.0 and working on Visual Studio 2013.