Can't get VSCode to work properly with Unity

Hello everyone,
I had the same issue with VS Code intellisense not showing up (for Unity API).
I'm using Linux Lite 4.6(Ubuntu 18.04 LTS), AMD Athlon II X2, Unity (2019.2.8f1).
My first steps were:
- Install .Net SDK (v3.0) following instructions from official site (https://dotnet.microsoft.com/download);
- Install VS Code. (Install C# extension);
- Set Visual Studio Code as external editor (in Unity);
and... nothing had happen.
Then I decided to use MonoDevelop IDE and use it for editing Unity scripts (https://www.monodevelop.com/download/#fndtn-download-lin-ubuntu).
I set external editor as Mono (not showing up in select box. You have to provide path to executable)...
and it worked perfectly!
But using MonoDevelop strangely increased my CPU usage to high values and i decided just for experiment use VS Code again! And it worked! Suddenly Intellisense started to work!
That was solution in my case. Hope that this solution will work for you.

 

Spent all day fixing an issue very similar to this, on Windows 10.

Since using various 2019.2.x editor versions I would occasionally get Unity into a state where it would not be able to launch VSCode at all.

VSCode child processes would show nested underneath the Unity Editor process in the Task Manager, but no code window would actually show. I definitely thought it strange that Code would be launched as a sub-process, but didn't know what to make of it for a good while.

On closing Unity, the sub processes would be orphaned, and needed to be ended manually before VSCode could be launched as standalone again.

No problems mentioned in either Unity or VSCode log files.

Stuff I tried that didn't work:

• Install Visual Studio 2019 latest version to to get MSBuild 16.3.x
• Install DotNet core 3.0.x
• Install latest Mono SDK
• Install DotNet 4.7.1 SDK (was already installed)
• Changing the way Unity passes command line arguments
  
• Disabling all VSCode extensions (safe mode)
• Deleting all VSCode settings and reinstall from fresh download
  • This worked once, a month ago, but problem returned today
  • Got it to launch properly once, but it broke soon after
• Install VSCode Insiders Edition
• Install Unity 2019.3.x beta

Installing the 2019.3.x beta did point out something useful! In the preferences panel, the UI for selecting External Script Editor now points you to two options for a VSCode install:



And it lists the option for /bin/code.cmd, which I only then remembered is what I used 6 months ago. Somewhere down the line I had configured it to use the Code.exe and never looked back. *facepalm*

After setting my editors to use /bin/code.cmd, launching VSCode from Unity appears to work again, including in earlier 2019.2.x versions of the editor.

Not a batch file expert, but code.cmd apparently sets just enough context to make it work:

Code (CSharp):

1. @echo off
2. setlocal
3. set VSCODE_DEV=
4. set ELECTRON_RUN_AS_NODE=1
5. "%~dp0..\Code.exe" "%~dp0..\resources\app\out\cli.js" %*
6. endlocal

(edit: only just noticed that this thread is in the Linux section of the forums... oh well)

 

I confirm 2019.2.x need dotnet 3.0 and msbuild 16.3, are in preview stage.

My previous post :
https://forum.unity.com/threads/2019-2-6f1-and-visual-studio-code-on-linux.749309

 

I tried several solutions but none worked for me. But finally I fixed my vscode integration.
1. Reset packages and update vscode package to 1.1.2. Not really work. This may not be help because Unity still open project in Visual Studio 2019 community instead of vscode.
2. Use this script, from https://www.reddit.com/r/Unity3D/comments/32bk48/how_to_remove_an_item_from_the_external_script/ to reset unity user preference.

Code (CSharp):

1. using UnityEditor;
2. using UnityEngine;
3.  
4. public class EditorResetPrefs : MonoBehaviour {
5.     [MenuItem ("Edit/Reset Preferences")]
6.     static void ResetPrefs() {
7.         if(EditorUtility.DisplayDialog("Reset editor preferences?", "Reset all editor preferences? This cannot be undone.", "Yes", "No")) {
8.             EditorPrefs.DeleteAll();
9.         }
10.     }
11. }

3. Select vscode as external script editor and everything worked again.

 

I have a project where I suddenly wasn't able to open VScode via Unity.

However if I create a new project it works as expected.

Seems like something with the project got corrupted... any ideas?

 

Reinstalling vscode worked for me.

 

I reset unity user preference then I can open vscode via Unity but now it won't compile when I change code. I don't want to reinstall vscode so I use VS 2019 community now.

 

I deleted the Assembly, sln and userprefs files from the game folder then open it again from unity hub after that VSCode works well

 

Any other fixes?

My problem:
Unity 2019.2.7f, can't open VS code with Intellisense/Omnisharp working. Double clicking on files in Unity does nothing except start rogue VS code processes in task manager that I can end task on. Manually opening VS code is great but would love auto-complete to work.

I tried:
1. Uninstalling and reinstalling VS code
2. Reinstalling .NET targetting framework 4.7.2 dev pack
3. Resetting the external tools preferences to the VS Code exe
4. Deleting project's Assembly-Csharp.csproj and *.sln from project folder and reopening from Unity Hub

So far no go.
I have a bunch of new computers and this error seems to randomly re-crop up on just a few machines. Most are working just fine, but a few just loose the ability to open files. About 2/15 at any given time. Usually one of the 4 methods above fixes the issue. This time it is being especially stubborn.

Other ideas? Posting to main forum too ...

 

So, best way to go about this. For Ubuntu 18.0.4 LTS

1) First download and install MonoDevelop -> https://www.mono-project.com/download/stable/ location /usr/bin/mono


2) Then get the .net 3.0 framework via terminal

wget -q https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb
sudo add-apt-repository universe
sudo apt-get update
sudo apt-get install dotnet-sdk-3.0


3) Download Visual Studio. Location is /usr/bin/code

4) Open Visual Studio and Download c# for Visual Studio and Debugger for Unity extensions via the extensions panel on left hand side.

5) Click debugger on left panel select from the drop down menu "Unity Debugger" near green play button. Then click the settings right next to it and it should open the launch.json file

5) Close Visual Studio and open Unity Project, then go to edit -> preferences -> external script editor -> select /usr/bin/code

6) MAKE NEW SCRIPT in your project and double click to open. It should pop up with some errors on the bottom right. Fix them by following the suggestions(The error that says "Unable to watch for file changes in this large workspace.") Is okay to ignore.

7) Close Unity and Visual Studio. Re-open Unity and then click on that new script that you just made. It should work from now on. At least it did for me!!!

 

Thank you!

The fix I finally found for Windows 10 is:

In Unity --> Top Menu --> Edit --> Preferences --> External Tools --> External Script Editor --> Select "Browse"

In the past, I had navigated to: "C:\Program Files\Microsoft VS Code\Code.exe"

Instead, navigate to: "C:\Program Files\Microsoft VS Code\bin\"
Then change the option of viewing only *.exe files to viewing all files
Select "code.cmd"
... so overall the path on mine is "C:\Program Files\Microsoft VS Code\bin\code.cmd"


This fix came from:
https://issuetracker.unity3d.com/is...external-script-editor-is-set-to-code-dot-exe

Specific solution came from:
@Anthony0506 By changing the "External Script Editor" in the editor preferences, manually browsing to ".../Microsoft VS Code/bin/code.cmd". The set editor still appears as "Visual Studio Code" though.

 

This is one solution Mac Users must apply.

 

just download framework 4.7.1 developer pack from here
https://dotnet.microsoft.com/download/dotnet-framework/net471
it solved my monodevelop and visual studio code problem

 

You might want to try the solution I posted here.

 

Doesn't work for me.

 

Thank you very much ! I had no .sln file in my directory so I tried your solution. That was it , it works now !

 

This is a little tips I want to share. When I open a new project, Intellisense doesn't work automatically. But 2 or 5 seconds later, There is a pop up message stating that : "Some projects have trouble loading. Please review the output..."
I click on "Show Output". Visual studio code opens my project and restores Intellisense by opening a file with the extension "sln". It also downloads the required files if not.
But don't forget to install the required Package (C# for Visual Studio, Debugger for Unity)

 

Arch user here

I did many things until I got proper intellisense and I think maybe one or two of the things that I did was unnecessary but here it goes

1. replaced my code package with the official binary version visual-studio-code-bin AUR
2. following this wiki page I made sure mono is intalled (I even installed mono-tools)
3. following this wiki page I made sure omnisharp-roslyn-http-bin AUR is intalled.
4. made sure the file /usr/bin/code indeed exists and unity is using it as an external IDE
5. made sure the Generate all .csproj files tick box is checked (which is found in the same external tools unity window)
6. from unity Assets > Open C# Project
7. vscode will now prompts me to install the C# extension
8. after that it started downloading and installing some C# debugger in the internal terminal
9. ???
10. profit

Now you will have to give your vscode a second or two each time after launch so it loads all the unity stuff and get proper intellisense going (just like how it is in Visual Studio on windows)

I'm guessing even if you're not running arch, What I just said might all or partially apply to any or most linux distros, In general you just have to find the right packages for yourself.

I hope my research will be of help to a poor soul in the future. Cheers.

 

Hey, i'm ArchLinux user too.

I only need to visual-studio-code-bin AUR, mono and dotnet-sdk for works.

In Unity, select usr > bin > code with menu in Preferences / External tools.
Also in Package Manager, rollback Visual Studio Code Editor from 1.1.4 to 1.1.3 (buggued, 3 month fixed but no 1.1.5 release this day)

In code, installed unity3d-pack only

 

Does VS Code write Start(), Update() and the other Monobehaviours automatically for you?

Try this: write

Code (CSharp):

1. void sta

in a new script and push Tab or Enter. If it works correctly, VS Code should automatically write the full function:

Code (CSharp):

1. private void Start()
2. {
3.  
4. }

Write:

Code (CSharp):

1. void ontrig

and VS Code should display a whole list of possibilities to choose from.

Is this supposed to work? Will it work one day if it doesn't yet?

 

Ubuntu 18.04

I was upgrading Unity to latest version and had trouble with Omnisharp's plugin for vscode. After downgrading hinting wasn't there.

Solution for me was to got to Assets -> Open C# project

Then restart vscode.

 

The solution that works 99% of the time for me is:

Go to Unity --> Edit --> Preferences --> External Tools
Select Browse
Go to C:/Program Files/Microsoft VS Code/bin
in the bottom right, select to view "All Files" and not "exe files"
You will see two options. Select the "Windows Command..." one that is a *.cmd file.

Cheers,
Brendan

 

That's for Windows not for Linux.

 

A lot of features, like directx are not support on linux build. That is why many develop on windows.

 

Irrelevant. This thread is about the Linux editor, not developing under Windows.

 

Sir you are initially correct, with topic at hand, but many consider linux dev problematic, as lots of feature on linux are unstable and has small user base. You can see steam stats for more references on operating system support, if you are making games just for yourself, linux will be fine, as long as you not do anything fancy.

 

Irrelevant. Out of topic. The question is about the Linux version of the editor. Look at the top of this page.

 

Well, at least, thank you for your answer! Now I know what to think. I hope someone, some day will come up with the custom fork you mention; in the meantime, I'll do without it.

Thank you again!

 

Just curious, the VSCode extensions for Unity that cover that, wont work on linux?

 

I don't understand, you said in your post #78 that it was not possible in Linux unless someone wrote a special fork for OmniSharp?

That's most probably what @Novack was asking about.

 

For me the problem was there were two .sln files and that was confusing vscode

(I deleted the old .sln)

 

I followed the tutorial from Microsoft for VS Code with Unity and it seemed to finally do the trick... https://code.visualstudio.com/docs/other/unity

Steps I took:

1. Installed https://dotnet.microsoft.com/download
2. Installed https://www.mono-project.com/download/stable/
3. Installed C# extension in VS Code.
4. Unity > Preferences (cmd + , on Mac) > External Tools (left toolbar) > External Script Editor > Visual Studio Code.
5. **Then this is the trick I found to work after doing all of this...** I open up VS Code prior to starting my Unity Project and manually go into the Unity Project folder and open up everything in VS Code FIRST. Then, with that project already open and working in VS Code with Intellisense, I double click the script in Unity and it will open it up in the already opened VS Code editor and have Intellisense already working! Do my normal workflow for the day and close everything down... then when I start up the next time, just be sure to open the project in VS Code FIRST and then VS Code will recognize it's a C# project and initiate Intellisense and all that jazz.

Hope this helps!

 

Worked For me

 

I hade the same problem But finally i found a fix it works perfectly for unity 2019.3 check this https://forum.unity.com/threads/psa-if-your-vs-code-c-extension-stopped-working.841255/

 

I ran into the same issue as APSchmidt (on OSX though, not Linux) and this was the first explanation I found as to what was going on. Thanks for clearing that up!

Out of curiosity, how do these "magic" functions appear in intellisense for Visual Studio (not VSCode)?

 

Well well, thanks for the tip.

 

-I couldn't get things work with VS Code then I
-found the VS Code extension in asset store
-installed it, then I went to Unity PReferences,
-VS Code (bottom)
-I checked everything useful in this Preference stuff
-then clicked on my sln project on the blue stuff at bottom of the vs code editor
=> it worked

 

Omg thank you so much ! Was stuck on this issue for hours.

 

Thank you so much. i have been working on it for a long time and not getting any success. You gave this easy solution, which worked for me.
Thank you so much.

 

Hello guys!

I had the same problem with Unity 2019.3.9f1, here's what solved it for me finally.

I did a lot of things mentioned above, downloaded the SDK, manually selected the Code.exe in the
Edit > Preferences > External Tools, but that alone did not seem to work.

Then I checked this magic setting:

Closed VS Code, then opened a script file from Unity. The VS Code opened, and voilá! Intellisense and error detection!

 

i clicked all the options below the external script editor, clicked regenerate project files and it worked

 

With the latest update, everything is fine now. I have intellisense and there is no bug anymore. I use Ubuntu 20.04.

 

On my VScode the preferences aren't in edit, they are on file and when i touch it nothing like Unity preferences or external tools appear so how can i do this

 

Oh... thanks (i'm a begineer in unity) ;-;

 

No need VScode plugin

remove all c#, vscode plugin, ...
remove unity project.
Generate new.
Then:

1 - https://dotnet.microsoft.com/d... -installer
2 - https://dotnet.microsoft.com/d... -installer
3 - https://download.visualstudio.... in-x64.exe

Then install c# for visual code.
No need plugins.
Works.