Visual Studio 2015 or 2017 shows IntelliSense errors but solution compiles

visual-studio intellisense visual-studio-2015
Ash picture Ash · Aug 11, 2015 · Viewed 52.7k times · Source

We are currently evaluating the new Visual Studio 2015 and encountered a strange problem with IntelliSense. When I compiled our main solution with the new studio the build succeeds, but nevertheless 6 errors are shown.

I discovered that it's not a real error, but only an intellisense error. The code is definitely correct and everything compiled successfully. The code however is marked red and errors show up in the error list.

All 6 errors have the same origin. It's a simple constructor call. Strange enough, but there are also some occurrences of the exact same constructor without any errors.

The error message:

Code: CS1729
Message: '<the class>' does not contain a constructor that takes that many arguments.
Project: <the project name>
File: <the path to the file>

The new studio was installed on a freshly installed Windows 7 without any legacy software (no VS13).

I've already tried to clear the caches, deleted the suo file, deleted bin and obj directories, cleaned and rebuilt the solution etc. But nothing worked.

Can anyone explain that behavior to me?

Answer

Karel Kral picture Karel Kral · Nov 2, 2015

I had thousands of intellisense errors and 0 build errors. After deleting .suo file and restarting VS intellisense errors are gone.

Suo file is located relatively to source in: .vs\SolutionName\v14\.suo

According to comment: Beware that *.suo is a hidden file.

Edit: According to comments, VS2017 has the same issue, so you can use similar solution: Delete .vs\SolutionName\v15\.suo

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