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This seems to be happening on a project-by-project basis. Currently I am working on an ASP.NET 4.5 Web Application Project. Intellisense was fine one day but not the next. I am using a custom project template but that should make no difference. I tried editing the text editor settings so that Auto list members and Parameter information are both checked. I tried to reset your Visual Studio settings (Tools --> Import and export settings --> Reset all settings) and I also tried the solution in the accepted answer here:

Intellisense not working

Has anyone got any insight or suggestions? Pending any answers, I've submitted a Connect bug report: https://connect.microsoft.com/VisualStudio/feedback/details/766891/intellisense-broken-in-vs-2012-rtm

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IrishChieftain
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1 Answers1

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You may be able to refresh Intellisense cache with Ctrl + Shift + R (on standard shortcut keys)

I've had the same issue on VS2010 and fixed it another method described at How to turn IntelliSense on in Visual Studio 2010?

From the link:

  1. Delete the files in this folder: %AppData%\Roaming\Microsoft\VisualStudio\10.0\ReflectedSchemas (the 10.0 folder may be a different number for VS2012)

  2. If nothing else works, you type this in the Visual Studio Command Prompt (this is in your Start menu) and hit enter: devenv /resetuserdata

This last option is documented here on MSDN, with the following disclaimer:

Disclaimer: you will lose all your environment settings and customizations if you use this switch. It is for this reason that this switch is not officially supported and Microsoft does not advertise this switch to the public (you won't see this switch if you type devenv.exe /? in the command prompt). You should only use this switch as the last resort if you are experiencing an environment problem, and make sure you back up your environment settings by exporting them before using this switch.

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Kirk
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    I've updated my answer to what fixed it for me a few weeks back in VS2010 – Kirk Oct 10 '12 at 15:05
  • Per your link, Edit -> Intellisense -> Refresh Remote References, for some reason fixed it! – IrishChieftain Oct 11 '12 at 01:13
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    Awesome, glad it worked. Losing intelisense is annoying. I didn't mention that method in the link since that menu doesn't appear in my VS2010. Odd – Kirk Oct 11 '12 at 03:39
  • Thanks! the second option worked for me after restarting VS2012 numerous times and rebooting my computer. – Rob Jun 11 '13 at 23:13