Intellisense Not Working with Visual Studio (Fix)

[brainstuck]

Thank You!!

[amansingh213as]

@DavidG_Fenex

Likely, if you have appeared here to this page you are having the problem I had for the past hour or so. Intellisense is not working in Visual Studio. Well lucky for you, I figured out the solution to fix this issue after searching the entire web. So you don’t have to search the web anymore, I will tell you how I fixed the issue.

Step 1:
Close Visual Studio

Step 2:
In Unity, go to Edit < Preferences < External Tools (left part of the Window)

Step 3:
In External Tools go to the part that says External Script Editor (this should be on which ever Visual Studio editor you are using (for me it defaulted to “Open by File Extension”

Step 4:
Make sure Generate all csproj files is checked, and Editor Attaching is checked

Step 5:
Open the C# script you were trying to open earlier

Hope this Helps

Currently using

• Unity 2019.3.3f1 Personal
• Visual Studio 2019

Thanks Man it worked for me , I was having issue for color coding and Intellisense , and it solved it my colors are on point ,Thankssssss

[Cardeia]

@CuriousScribbles

…

What did work for me was simply this:
Edit > Preferences > External Tools > Regenerate project files

Problem solved.

This helped, thanks!

[hentaimasuta]

Thank you

[yust]

@celechii

this thread has helped me a bunch when this came up in other projects but for some reason this time none of the solutions here fixed it? using unity 2019.4 LTS, vs code on mac, the C# extension n all of the unity extensions recommended, tried regenerating the project files, nothing worked this time.

going into vs code’s settings n changing OmniSharp: Use Global Mono from auto to always fixed it for future ref

This is what fixed it for me! Thank you!

[OneZero77]

@DavidG_Fenex

Likely, if you have appeared here to this page you are having the problem I had for the past hour or so. Intellisense is not working in Visual Studio. Well lucky for you, I figured out the solution to fix this issue after searching the entire web. So you don’t have to search the web anymore, I will tell you how I fixed the issue.

Step 1:
Close Visual Studio

Step 2:
In Unity, go to Edit < Preferences < External Tools (left part of the Window)

Step 3:
In External Tools go to the part that says External Script Editor (this should be on which ever Visual Studio editor you are using (for me it defaulted to “Open by File Extension”

Step 4:
Make sure Generate all csproj files is checked, and Editor Attaching is checked

Step 5:
Open the C# script you were trying to open earlier

Hope this Helps

Currently using

• Unity 2019.3.3f1 Personal
• Visual Studio 2019

[OneZero77]

thank you so much <3

[Twebbers]

Greatly appreciated.

If Visual Studio is the oficial solution for Unity then this needs to always work, I know 3 (small) companies who stopped working with this engine becuase of bs like this. It used to be so much better when monodevelop was around.

[mscheschy]

Hi I am using Unity 2020.1.0f1, VS 2019 Community 16.7.4, Unity Visual Studio 2.0.3 Plugin installed, External Script Editor is Visual Studio 2019. When i try to open the Script nothing happens. If I switch the External Script Editor to Open by file extension the Script opens in VS but intellisense don’t works.

I have no idea what i could do to make it work.

[saltysquid]

I’m in the same boat as mscheschy - Using:

Unity 2020.1.0b4
Visual Studio Community 2019 16.7.4

I’ve installed the “Game development with Unity” extension and I have Visual Studio 2019 (Community) set as my default editor. When I click on a script VS 2019 opens just fine but I have no intellisense and no debug with Unity option. This worked perfectly a month ago until I upgraded my Visual Studio version.

I also noticed that if I open the Unity Hub (version 2.4.0) and try to “installs > add modules” and add Microsoft Visual Studio Community 2019 - the installer runs and completes but when I go back to modules it’s still unselected as if it never installed. May be a clue as to what’s going on.

Edit: I should note that Visual Studio Code DOES have intellisense - I just very much prefer VS 2019 over VS Code.

[John_MSFT]

@mscheschy @saltysquid Thanks for sharing this info. I certainly want to help resolve this.

Can you use the Help > Report a Problem menu in VS to file these issues? In the meantime, I’ll investigate what I can on my end.

[quintonleongnam]

@DavidG_Fenex Thank you so much! works like a charm!

[chemoduck64]

I am new to Unity and programming in general. I was having problems with intellisense not working but I resolved that inside the Unity “preferences” by setting VS to primary Script Editor. Everything seems to work now, except when I type something out like a float variable, I don’t get a color change on the numbers and the scripts are not working as well so I know something is not working but I have no idea what is wrong. Even if I download a premade controller script, it still blacks them out.Please help! I have included images of my settings and what the code looks like. I am using VS community 2019 and Unity version 2019.4.11

[tutaBugarin]

@SpinJack

That didn’t work for me…

I already had Visual Studio Code selected as script editor.
I didn’t have any checkboxes selected under “Generate .csproj files for:”
I added the checkboxes to all of them, but it had no impact when I reopened a script through Unity.

Unity recognizes that Visual Studio Code is my External Script Editor, but intellisense in Vis Studio Code still does not recognize or provide autocomplete for Unity namespace items.

Edit: After a bit of searching I found the solution!

In addition to the steps listed above in this thread, there is also a Visual Studio marketplace addon that I had to install! Install the following free addon extensions from Visual Studio Marketplace. I would’ve provided links but the Unity Forum marks it as spam.

Debugger for Unity by Unity Technologies
For me, the Unity Debugger finally fixed it!

Two additional optional Unity tools to consider installing:
Unity Tools by Tobiah Zarlez
Unity Code Snippets by Kleber Silva

I installed all of the above, and I’m happy now!

In my case, I just installed Unity and Visual Studio Code for the first time a few days ago and I just didn’t know about the extra Unity extensions that I REALLY needed.

I legit searched the whole web, tried 43 methods(yes, I counted), nothing worked… I now installed VS Code and the Unity Debugger and it works very good!
You saved me!

[Lumpazy]

yay. i looked for hours at c# intellisense and packages / reinstalls etcetcetc …
This worked. totally mysterious.
Thank you

[ahmedaniss]

problem fixed here :

- YouTube

[A_Sloane]

@ahmedaniss

problem fixed here :
https://www.youtube.com/watch?v=7rgIgBkd3LA

Thanks man ! It solves the problem with me after installing the last version (Unity 2020.1.8f1)

[LeFuji]

This just saved my day. I just reseted my windows and it was physically painfull to write every function inherited from a Unity Asset. This little guide should pop up after a fresh Unity installation.

[BRSHR]

@illyTheKid

I’ve deleted “Visual Studio Editor” in package manager and everything works as before now.

it works. thank you. i have back intellisense

[Tiglath]

Fantastic. Thanks