VS2013 intellisense code completion

Question

First I thought it was a problem of VS2013 RC/beta but now I installed VS2013 RTM and still have the same problem: code completion does only open after I execute it manually

Answer 1

If none of the above suggestions work, check if you have an extension Web Essentials installed. Try removing it (and install again). Web Essentials has caused my intellisense to stop working multiple times and a simple re-install always fixes the issue for me.