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c#visual-studiounity-game-engineintellisense
CorbenDalas
CorbenDalas

Reputation: 3953

Unity Scripts edited in Visual studio don't provide autocomplete

When I want to edit C# Unity scripts, they open in Visual Studio. It is supposed to provide auto complete for all Unity related code, but it doesn't work.

Here you can see the missing functionality:

Video of missing autocomplete feature

As seen, the transform object does not open the autocomplete menu.

Unity version: 5.5.2f1
Visual studio 2015
Visual Studio Tools for Unity is installed

Upvotes: 379

Views: 565386

Answers (30)

Junaid Pathan
Junaid Pathan

Reputation: 4336

Try this:

  1. In the Unity Editor, navigate to the Menu bar and select Edit -> Preferences -> External Tools -> External Script Editor. Set it to Visual Studio (specify your installed version of Visual Studio).

  2. Next, in the Menu bar, go to Edit -> Project Settings -> Player -> Other Settings. Under the Configuration section, check the API Compatibility Level and change it to your installed .NET version (in my case, I set it to .NET 4.x).

  3. If Visual Studio is already running, switch to Visual Studio; it will prompt you to reload the project. Click Reload. Else close Visual Studio.

  4. Reopen the .cs file from the Unity Editor, and it should now work correctly.

Upvotes: 143

Douglas
Douglas

Reputation: 19

If nothing in this thread resolve, install Desktop development with .NET enter image description here

Upvotes: 1

Wesley Hall
Wesley Hall

Reputation: 21

Newer versions of Unity allow you to install visual studio with Unity compatibility in the setup screen, it does it all automatically for you if you check it off.

Upvotes: 0

P.O.W.
P.O.W.

Reputation: 2225

These actions solved the problem for my projects in Visual Studio 2022

FIX 1

  • Solution
    • Assembly-CSharp (right-click)
      • Load Entire Dependency Tree

FIX 2

  • Solution
    • Assembly-CSharp
      • References
        • Double click on any lib to force loading

Upvotes: 2

Umar Bhat
Umar Bhat

Reputation: 39

"Preferences" -> "External tools" -> set you exteranl tool

Thats one fix. Also for VS you can use ReSharper by JetBrains, but I recommend use Rider. That one is also free for students. It provides less performance than visual studio, but more than VS+Resharper definitely.

Have a good day, mate)

Upvotes: 2

Programmer
Programmer

Reputation: 125445

There is no auto-completion because the script says "Miscellaneous Files" instead of the of the name of the Project. Take a look at the image below that came from the video in your question:

enter image description here

The "Miscellaneous Files" message can happen for many reasons:

  1. It can happen when you open your Unity C# file from another folder instead of opening it from Unity Editor.

  2. This can also happen because Unity crashed while Visual Studio is still open therefore corrupting some files.

  3. It can happen because Unity was closed then re-opened but is no longer connected to Visual Studio. When Visual Studio is opened you get "Miscellaneous Files" and no auto-completion.

  4. This can happen when Visual Studio Tools for unity is not installed.

  5. When you create a script from Unity then quickly open it before Unity finish processing it or before the round icon animation stuff finish animating.

Most of the times, restarting Unity and Visual Studio should fix this.

I can't tell which one is causing the problem but I will cover the most likely solution to fix this.

Fix Part 1:

  1. Download and Install Visual Studio Tools for unity from this link. Do this while Unity and Visual Studio are both closed.

  2. From Unity Editor, go to Edit → Preferences... → External Tools. On the External Script Editor drop down menu, change that to Visual Studio 2015.

    enter image description here

Fix Part 2:

If newly created C# files are coming up as Miscellaneous then follow the instruction below:

  1. From Visual Studio, go to Tools → Options... → Tools for Unity → Miscellaneous. Under Show connectivity icon, set it to true then restart Visual Studio.

    enter image description here

  2. When you re-start, connection icon should now be available in Visual Studio. Click it then choose the Unity instance to connect to. The red 'x' icon should now turn into a brown checkmark icon. Now, when you create a new C# file in Unity, it should open without saying Miscellaneous.

    enter image description here

Fix Part 3:

Still not fixed?

Re-import project then open C# Project.

  1. Close Visual Studio.

  2. From Unity, re-import project by going to Assets → Reimport All.

    enter image description here

  3. Now, open the project in Visual Studio by going to Assets → Open C# Project. This will reload the project and fix possible solution file problems.

    enter image description here

Fix Part 4:

Still not fixed?

Fix each C# file individually.

  1. Click on Show All Files icon.

    enter image description here

  2. Select the script that doesn't do auto-complete then right-click and select Include In Project.

    enter image description here

Fix Part 5:

Not fixed yet?

Credit goes to chrisvarnz for this particular solution which seems to have worked for multiple people.

  1. Close Visual Studio

  2. Go your project directory and delete all the generated Visual Studio files.

    These are the files extensions to delete:

    • .csproj
    • .user
    • .sln

    Example:

    Let's say that the name of your Project is called Target_Shoot, these are what the files to delete should look like:

    • Target_Shoot.csproj
    • Target_Shoot.Editor.csproj
    • Target_Shoot.Editor.csproj.user
    • Target_Shoot.Player.csproj
    • Target_Shoot.Player.csproj.user
    • Target_Shoot.sln

    Do not delete anything else.

  3. Double click on the script again from Unity which should generate new Visual Studio file then open Visual Studio. This may solve your problem.

Fix Part 6:

If not working, check if you are having this error:

The "GetReferenceNearestTargetFrameworkTask" task was not found

  1. Install Nuget PackageManager from here.

  2. Restart Visual Studio.

See this answer for more information.

Fix Part 7

Make sure all of the projects are loaded. In Solution Explorer it should tell you # of # projects. If all of the projects are not showing, right click on "Solution (# of # projects)" and click Load Projects.

Upvotes: 749

Girent
Girent

Reputation: 13

You install this? unity

Install Visual Studio and Unity Download the Visual Studio installer, or open it if already installed. Select Modify (if already installed) or Install (for new installations) for your desired version of Visual Studio. Select the Workloads tab, then select the Game development with Unity workload. If Unity is not already installed, select the Unity Hub checkbox in the Optional section of the installer. Select Modify or Install to complete the installation.

Upvotes: 0

Spark
Spark

Reputation: 37

In Unity, Edit>Preferences>External Tools Click Regenerate project files.enter image description here

Upvotes: 1

saleh
saleh

Reputation: 347

from Unity select Edit option, then ~> Preferences... ~> External Tools, and then turn on Built-In Packages. I tried every solutions, and just this one helped me which I turned it on by a chance!

Upvotes: 0

Alexey Zavrin
Alexey Zavrin

Reputation: 67

If you are using Resharper with Microsoft Visual Studio, you need go to "Extensions -> ReSharper -> Extensions Manager" and install extension "Unity support". Works like magic!

Upvotes: 0

dalmate
dalmate

Reputation: 481

Uhm, maybe you can see my guide as an optional method. I got this problem when using Unity 2020 with Visual Studio Code 1.26 To solve problem, I follow below steps:

  1. In stall C# plugin in Visual Studio
  2. Install Mono from this https://www.monodevelop.com/download
  3. Let see where Mono is installed in your Mac by this command which mono. For example, in my Mac, it's /Library/Frameworks/Mono.framework/Versions/Current
  4. Back to C# plugin, let open its setting and change below in setting.json of plugin:
    "omnisharp.monoPath": "/Library/Frameworks/Mono.framework/Versions/Current",
    "omnisharp.useGlobalMono": "always"

Here we go....

Upvotes: 0

dangalg
dangalg

Reputation: 6486

This page helped me fix the issue.

Fix for Unity disconnected from Visual Studio

enter image description here

In the Unity Editor, select the Edit > Preferences menu.

Select the External Tools tab on the left.

For External Script Editor, Choose the Visual Studio version you have.

Click regenerate Files

You Done

Upvotes: 11

Omdevsinh Gohil
Omdevsinh Gohil

Reputation: 155

The following works for me.

Go to Edit->Preferences->External Tools->External Script Editor Select Scripting Editor

enter image description here

Upvotes: 3

Michaël Nguyen
Michaël Nguyen

Reputation: 363

I found another way to fix this issue in a more convenient manner:

  1. Select the broken file in Solution Explorer.
  2. Open its Properties.
  3. Switch field "Build Action" from "Compile" to "None".
  4. Then switch it back to "Compile".

This will kill the synchronization between Unity and Visual Studio somehow.

The next time Visual Studio will reload the project, it will prompt a warning. Just click on "Discard".

Upvotes: 21

Eray Alparslan
Eray Alparslan

Reputation: 814

What worked me is that I copied all the code inside the broken class and removed that file. Then, I opened an empty file with the same name and pasted back.

Result: beautiful syntax highlights came back!

Upvotes: 2

Neuron
Neuron

Reputation: 5851

For some odd reason, the "Game development with Unity" tool can become disabled in Visual Studio.

To fix this..

  1. Open Visual Studio
  2. Go to Extensions → "Manage Extensions" → Installed
  3. Find "Visual Studio 2019 Tools for Unity"
  4. If it is disabled, enable it
  5. Restart VS

Credit to Yuli Levtov's answer on another Thread

Upvotes: 3

Sebinjude Shaolin
Sebinjude Shaolin

Reputation: 81

None of the above solutions worked for me. However I opened the ProjectName.CSPROJ file and manually added the new file and it worked like charm

Upvotes: 2

Andi Schroff
Andi Schroff

Reputation: 1344

Update 2020 with Visual Studio Community 2019 and Unity 2019.3:

  1. Open Visual Studio Installer as Administrator, select to modify your current installation and add "Game development for Unity"

  2. If you add a new c# script in Unity now, and open it (automatically) with Visual Studio, it is not described as "Miscellaneous" at the top of the window but with "Assembly-CSharp", and the autocomplete works.

Upvotes: 4

Kale_Surfer_Dude
Kale_Surfer_Dude

Reputation: 914

Another possible fix:

  1. In the project window, click on the Assets folder
  2. Right click, and Create -> C# Script
  3. Double click that, and wait.

For some reason, this work.

Upvotes: 2

yOhaan
yOhaan

Reputation: 514

If you have done all of the above and still isn't working , just try this: Note: you should have updated VS. Screenshot from visual studio

Goto Unity > edit> preference >External tools> external script editor. Unity screenshot Somehow for me I had not selected "visual studio" for external script editor and it was not working. As soon as i selected this and doubled clicked on c# file from unity it started working.

I hope it helps you too.

Upvotes: 20

INDRAJITH EKANAYAKE
INDRAJITH EKANAYAKE

Reputation: 4294

one of the above methods are worked for me and I just found a solution to this problem,
1. First, go to the project directory and delete .sln file
2. Second, go to unity and double click your script. Then Visual Studio will be open with an error, enter image description here

  1. Then click ok and close Visual Studio editor.
  2. Finally, turn off your Windows Defender and then go to your project directory and there will be .csproj file. Just double click and open this from your Visual Studio editor and open the scripts folder inside the assets folder and open the scripts and autocompletion will be working perfectly fine.

Upvotes: 1

Barna Kadar
Barna Kadar

Reputation: 21

Try with combination: Ctrl + Alt + Space

Upvotes: 1

Kevin Martin
Kevin Martin

Reputation: 21

I tried all of these but ended up finding out that I needed to right-click the solution in Solution Explorer and add existing items and find the C# assembly file in Window's Explorer. There seem to be a bazillion different problems that give you this error, this is likely the most simple solution. If you double click on your script from unity, it does not seem to drag the assembly along.

Upvotes: 2

David.Ambuka
David.Ambuka

Reputation: 21

Before restarting and/or re-installing VS, First try opening any other of your projects to see if Intellisence works, if it does, then issue probably lies with your current project. First, most probable victim would be the NUGET packages with pending updates. To Fix this,

  1. Right click on references
  2. Proceed to Manage NUGET Packages Under NUGET Packages
  3. proceed to updates Install Updates and recheck Intellisence

Upvotes: 2

user11897507
user11897507

Reputation: 21

Keep in mind that if you are using the ReSharper tool, it will override the IntelliSense and show it's own. To change that, on VS, go to Extensions -> ReSharper -> Options -> IntelliSense -> General then choose Visual Studio and not ReSharper.

Upvotes: 2

maitrunghieuit
maitrunghieuit

Reputation: 31

Try pressing Ctrl + Alt + Space (which toggles between suggestion and standard completion modes)

Upvotes: 3

Mangaldeep Pannu
Mangaldeep Pannu

Reputation: 3987

  • Go to Options on the Tools menu and then select Documents in the Environment node. (If Documents does not appear in the list, select Show all settings in the Options dialog box.)
  • Put a tick on "Miscellaneous files in Solution Explorer" and Click OK. (This option displays the "Miscellaneous Files" node in Solution Explorer. Miscellaneous files are files that are not associated with a project or solution but can appear in Solution Explorer for your convenience if you tick this option.)
  • Locate your file in the Solution Explorer under "Miscellaneous Files". Then drag and drop your file to where it should belong and voila! This will copy the file to where you drop it. You may now safely delete the older file under Miscellaneous Files folder if you wish to do so

Credits: https://stackoverflow.com/a/47662523/10471480


In case Scripts folder is not visible:

  • Click on "Show all files" in Solution Explorer
  • Locate the Scripts folder.
  • Right Click on Scripts and select "Include in Project"

Upvotes: 3

rkbroach
rkbroach

Reputation: 31

The issue I faced was that the C# Project was targeting a different .NET Framework (4.7.2), whereas the Unity project had a different target (.NET 3.5).

I fixed this by changing the target in Unity as-

File -> Build Settings -> Player Settings -> Other Settings -> API Compatibility Level : Set it to the .NET version you already have installed (Check your .NET Version here). In my case, it was 4.x

After this, Visual Studio worked perfectly and autocorrect was fixed too.

Upvotes: 3

Thayakorn Rakwetpakorn
Thayakorn Rakwetpakorn

Reputation: 553

My autocomplete also didn't work because Visual Studio Tools for Unity wasn't installed. So, after you install that, delete the auto generated Visual Studio files. Others said that you open file again and the problem is solved but it's not.

The trick is: instead of normally double-clicking the file, you need to open the C# file from Unity by right click and then "Open C# Project".

Upvotes: 3

Bruno Araujo
Bruno Araujo

Reputation: 443

I solved to install the same version of .NET on WIN that was configured in my Unity project. (Player Settings)

Upvotes: 2

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