Unity can't open Visual Studio

[Olmi]

Hi,
There’s similar issues with Visual Studio Code, if you have seen any of these discussions:

VS code - files not opened from Unity

Unity version 2019.2.0b2 VS Code version 1.34.0 Using a mac 10.14 When double clicking a .cs file in the Unity editor, VS launches and the .cs file opens. All good. However, if I try to open another .cs file from the Unity editor (same project), then the VS Code application is shown, but the file does not open. If I quit VS Code and try opening the file again from Unity, then the file opens OK. I’ve tried to resolve this by modifying the External Script Editor Args “(ProjectPath)" -g "(File)…

Can't get VSCode to work properly with Unity

I've been trying to get Intellisense to work, but I don't get any relevant autocompletion like other people I've seen here. I've followed the instructions on this post: https://discussions.unity.com/t/699106 This is what I'm getting, compared to the screenshots in that thread. https://i.imgur.com/bDtoKzn.png Not sure what could be happening. The C# extension is installed, and mono too. I've followed the steps indicated here too: https://code.visualstudio.com/docs/other/unity but I can't ge…

I’ve had similar issues too… It might be worth checking those threads even if they’re about VS Code, and see if there’s something you haven’t tried yet. I suspect (just an educated guess) that having multiple installs of Unity might have something to do with it, maybe. I never had these can’t open VS/VS Code issues until I started using many Unity installs at the same time.