Unity Scripts edited in Visual studio don t provide autocomplete

Question

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   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

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Select project in Visual Studio  Click  Refresh  button

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

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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     Then click ok and close Visual Studio editor  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

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i found my solution by creating the  cs file from visual studio itself instead of unity editor   right click on project folder in solution explorer add   new item type  unity  on the search field on the top right select  CSharp MonoBehaviour  name your script on the bottom and click Add

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Update 2020 with Visual Studio Community 2019 and Unity 2019 3   Open Visual Studio Installer as Administrator  select to modify your current installation and add  quot Game development for Unity quot   If you add a new c  script  in Unity now  and open it  automatically  with Visual Studio  it is not described as  quot Miscellaneous quot  at the top of the window but with  quot Assembly-CSharp quot   and the autocomplete works

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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

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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

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For some odd reason  the  quot Game development with Unity quot  tool can become disabled in Visual Studio  To fix this    Open Visual Studio Go to Extensions    quot Manage Extensions quot    Installed Find  quot Visual Studio 2019 Tools for Unity quot  If it is disabled  enable it Restart VS   Credit to Yuli Levtov s answer on another Thread

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Try this   In Unity Editor Go to Menu  Click on Edit - gt  Preferences - gt  External Tools - gt  External Script Editor  Set it to Visual Studio  your installed version of VS    Now in Menubar go to Edit - gt  Project Settings - gt  Player Settings - gt  Other Settings - gt  Under Configuration - gt  Check API Compatibility Level - gt  Change it to your installed  Net version  In my case I set it to  Net 4 x   Now if Visual Studio is running already go to Visual Studio  it will ask to reload project  Reload the project  Check if it works  if not close Visual Studio  Now Open cs file from Unity Editor  and now it should work

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If you have done all of the above and still isn t working   just try this   Note  you should have updated VS    Goto Unity   edit  preference  External tools  external script editor   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

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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

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

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

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I hit the same issues today using Visual Studio 2017 15 4 5 with Unity 2017   I was able to fix the issue by right clicking on the project in Visual Studio and changing the target framework from 3 5 to 4 5   Hope this helps anyone else in a similar scenario

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This page helped me fix the issue  Fix for Unity disconnected from Visual Studio  In the Unity Editor  select the Edit  gt  Preferences menu   Select the External Tools tab on the left  Select unity version from drop down list on the right Click regenerate Files You Done

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I found an another way to fix this issue in a more convenient manner    Select the broken file in Solution Explorer  Open its Properties  Switch field  Build Action  from  Compile  to  None   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

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There is no auto-completion because the script says  quot Miscellaneous Files quot  instead of the of the name of the Project  Take a look at the image below that came from the video in your question   The  quot Miscellaneous Files quot  message can happen for many reasons   It can happen when you open your Unity C  file from another folder instead of opening it from Unity Editor   This can also happen because Unity crashed while Visual Studio is still open therefore corrupting some files   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  quot Miscellaneous Files quot  and no auto-completion   This can happen when Visual Studio Tools for unity is not installed   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   Download and Install Visual Studio Tools for unity from this link  Do this while Unity and Visual Studio are both closed   From Unity Editor  go to Edit   Preferences      External Tools  On the External Script Editor drop down menu  change that to Visual Studio 2015      Fix Part 2  If newly created C  files are coming up as Miscellaneous then follow the instruction below   From Visual Studio  go to Tools   Options      Tools for Unity   Miscellaneous  Under Show connectivity icon  set it to true then restart Visual Studio    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      Fix Part 3  Still not fixed  Re-import project then open C  Project   Close Visual Studio   From Unity  re-import project by going to Assets   Reimport All    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      Fix Part 4  Still not fixed  Fix each C  file individually   Click on Show All Files icon    Select the script that doesn t do auto-complete then right-click and select Include In Project      Fix Part 5  Not fixed yet  Credit goes to chrisvarnz for this particular solution which seems to have worked for multiple people   Close Visual Studio  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   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  quot GetReferenceNearestTargetFrameworkTask quot  task was not found   Install Nuget PackageManager from here   Restart Visual Visual    See this answer for more information

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Try with combination  Ctrl   Alt   Space

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In my case  correct  net version was not installed on my PC  I install the  net 3 5 on my pc and that worked for me

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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

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Another possible fix    In the project window   click on the Assets folder Right click  and Create -  C  Script Double click that  and wait    For some reason  this work

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Unload and reload the project  in Visual Studio    right click your project in Solution Explorer select Unload Project select Reload Project   Fixed   I found this solution to work the best  easiest   having run into the problem multiple times   Source  https   alexdunn org 2017 04 26 xamarin-tips-fixing-the-highlighting-drop-in-your-xamarin-android-projects

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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

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For Windows or macOS   Download Install the Visual Studio IDE  with Unity Tools   When installing  make sure you include installation of      Game development with Unity     Then using Unity  you can double click one of your C  files   open a new C  project and the Visual Studio IDE should open with your new project structure     From there  you should be able to see what you are looking for   For example       For Linux  suggestion    Try Monodevelop - Additional Information  it provides code completion hints

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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

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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

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Two Alternative Options   Fix 1   singleton pointed me in this direction   Instead of changing the target in Visual Studio you should change it in Unity since the project is auto-generated   First delete the auto generated Visual Studio files   csproj  user  sln  Then from within Unity go to PlayerSettings and under  Other Settings  change the  Scripting Runtime Version  from Stable 3 5 to Experimental 4 6   However  that didn t fix it for me     Fix 2  I noticed all of the references to Unity related code was marked with a yellow warning   Check your error logs and see if this is the case   In particular see if you get the following error  getreferenceNearestTargetframeworkTask   If so try  Start Visual Studio Installer again   On the Build Tools 2017  click Modify   Ensure that  Nuget targets and build tasks  are ticked   This should become ticked if you click on Universal Windows Platform development

[c#] Unity Scripts edited in Visual studio don't provide autocomplete

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