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Intellisense not working on one project - VS2019

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Wednesday, April 17, 2019 7:30 PM

Hello,

I'm having issues with one specific project in VS2019. After upgrading from VS2017, I got the solution from the TFS.

Everything was working fine until I modified a file of this project. Intellisense stopped working.

It should be something related to this project file because if I modify other files in other projects from the same solution it keeps working fine.

What can I do to try to fix it?

Hugo

All replies (7)

Thursday, April 18, 2019 6:16 AM

Hi hsrm,

Welcome to the MSDN forum,

“Everything was working fine until I modified a file of this project. Intellisense stopped working.” What and how did file you modify? Could share us the specific steps and info? Did you try to rebuild your project after modifying done?

I am guessing, Intellisense doesn't know what to do or recognize this file, please unload and reload it.

If not, please have a try with the following steps to clean caches of your project:

  1. View => Solution Explorer (in case it isn't already open)
  2. Right click "Solution 'Project name'"
  3. Click "Open Folder in File Explorer"
  4. Close Visual Studio
  5. Show hidden folders (Win10 How-to)
  6. Delete folder ".vs"
  7. Open Visual Studio and project (wait a few seconds)

Sincerely

May

MSDN Community Support Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [email protected]

Friday, April 19, 2019 6:26 AM

Hi friend,

Is there any update for your issue?

May

MSDN Community Support Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [email protected]

Friday, August 30, 2019 7:28 AM

Hi, 

had the same problem. this solution worked for me.

/Niclas

Wednesday, September 4, 2019 8:37 PM

Hi,

A quick trick that seems to "wake Intellisense back up" for me is to click on Project->Show All Files. For some reason VS occasionally drops all of the external dependencies. Clicking "Show All Files" brings them back.

Hope this helps,

Thomas

Monday, December 2, 2019 11:29 PM

This last suggestion ( Project -> Show All Files ) worked for me.

Wednesday, January 8, 2020 11:33 PM

My colleague's problem was that the version of .NET framework in the project being referenced was higher than the project referencing it.

Wednesday, August 5, 2020 8:46 PM

Dear all,

I'd the same problem. My Visual Studio 2019 was updated to 16.7.0 version on 2020-08-05 and didn't solve the problem.

I found out the workaround:

  1. Go to Tools -> Options -> Text Editor -> C# -> IntelliSence
  2. Uncheck => Show items from unimported namespaces (experimental)

Cheers.

Jener Garcia Menezes