ReSharper "Cannot resolve symbol" even when project builds

Try Visual Studio → menu ToolsOptionsReSharper, Suspend button and Resume again (no need to close the window). This works in my case.


VS -> Tools -> Options -> ReSharper Suspend button 
Clear Contents of -> AppData\Local\JetBrains\ReSharper\v7.1\SolutionCaches
VS -> Tools -> Options -> ReSharper Resume  button

This worked for me (VS2012u4, R# 7.1.3):

  1. Resharper > Options > Environment: General > Clear Caches
  2. Restart Visual Studio

Clear Resharper cache: Resharper -> Options -> General -> Clear Caches, close and reopen the solution. It worked in R# 9.0 Update 1