Visual Studio Intellisense not showing some classes

Question

My Visual Studio is not showing a lot of the available classes in the IntelliSense auto-complete. For example, a project I'm working on has a reference to the Microsoft.Xna.Framework namespace, yet even after adding the using statement using Microsoft.Xna.Framework in a file, IntelliSense is unable to recognize classes like Texture2D and Rectangle. I can still type them in, however, without getting a compiler error. Any idea what's happening?

The IntelliSense detects standard libraries like System.Diagnostics but not any external ones.

It is not a NameSpace conflict issue because classes within the current namespace are also missing from the IntelliSense.

I have tried:

• Restarting Visual Studio (With and without closing tabs)
• Deleting the contents of %LocalAppData%\Microsoft\VisualStudio\14.0\ComponentCacheModel folder
• Resetting import and export settings

Solution 1

OK so probably not the best solution but it works. I reinstalled Visual Studio and the problem was fixed. Also, it hasn't shown up since (this happened about 3 months ago).

Solution 2

What worked for me is unloading and reloading the project

Solution 3

If unloading/reloading the project doesn't work, try deleting the .suo file found in the SolutionName/.vs/ folder. The .vs folder is an auto-created, hidden folder so you will have to show hidden folders in order to see it.

Solution 4

I am using ReSharper. What worked for me:

1. Unload project.
2. ReSharper > Options > Environment > General > Clear caches
3. Close solution.
4. Exit Visual Studio.
5. Restart Visual Studio.
6. Reload project.

Solution 5

Do you have ReSharper or any other plugins installed? There sounds like a similar issue/solution here. It may be third-party plugins at play depending on what add-ons you have.

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Comments

[user1703401]

Texture2D and Rectangle are in the Microsoft.Xna.Framework.Graphics namespace. So you'll certainly need more than one using directive.

[DSchana]

@HansPassant The problem is right from there. It doesn't detect any directives other than System

[abpatil]

Not a single answer given below worked for me :(

[DSchana]

Yea this did not work. Also I just added things I've tried.

[DSchana]

The only third party thing u have installed is Monogame.

[Andre Luus]

In my case this also worked, unloading and reloading the assembly where the new class was added that is.

[markp3rry]

This worked for me on VS2017 just now; I had an MVC app and a class library that weren't recognising each other in intellisense (although everything compiled OK). Unloading a reloading both projects resolved the problem.

[Dorival]

Worked for me disabling CodeLens first, then unloading and reloading the offending projects.

[reiti.net]

this worked for me after intellisense stopped working in monogame shared project - thanks