"Unity.InputSystem does not contain a definition for SaveAndReset"

[ComeOnAndSam]

This error suddenly started appearing when I build my unity solution in visual studio. It’s not an error in Unity, just in VS 2022, and it’s preventing me from attaching the debugger because the build is failing. I build, and I see these errors.

And I go there in the script, and that line is in fact erroring out, but only in VS, not unity console. And since it’s a default unity package, I can’t (aren’t supposed to) edit the lines, so I can’t remove the error.

What’s the cause of this and how do I fix it?

[Kurt-Dekker]

@ComeOnAndSam

It’s not an error in Unity, just in VS 2022

This may help you with intellisense and possibly other Visual Studio integration problems:

Sometimes the fix is as simple as doing Assets → Open C# Project from Unity. Other times it requires more.

Other times it requires you also nuke the userprefs and .vsconfig and other crufty low-value high-hassle files that Visual Studio tends to slowly damage over time, then try the above trick.

Barring all that, move on to other ideas:

https://discussions.unity.com/t/778503

Also, try update the VSCode package inside of Unity: Window → Package Manager → Search for Visual Studio Code Editor → Press the Update button

Also, this: https://discussions.unity.com/t/805330/7

[ComeOnAndSam]

@Kurt-Dekker

This may help you with intellisense and possibly other Visual Studio integration problems:

Sometimes the fix is as simple as doing Assets → Open C# Project from Unity. Other times it requires more.

Other times it requires you also nuke the userprefs and .vsconfig and other crufty low-value high-hassle files that Visual Studio tends to slowly damage over time, then try the above trick.

Barring all that, move on to other ideas:

https://discussions.unity.com/t/778503

Also, try update the VSCode package inside of Unity: Window → Package Manager → Search for Visual Studio Code Editor → Press the Update button

Also, this: https://discussions.unity.com/t/805330/7

None of these work, I don’t think this is a VS issue but a project issue. Multiple people are working on this project, not a single one of them is able to get the debugger to work anymore.

It’s like scripts in certain assemblies can’t be attached to

[gogman]

@ComeOnAndSam

None of these work, I don’t think this is a VS issue but a project issue. Multiple people are working on this project, not a single one of them is able to get the debugger to work anymore.

It’s like scripts in certain assemblies can’t be attached to

I was having the exact same issue. This fix worked for me: Close Visual Studio, then in Unity under File → Build Settings, check the Development Build box, then under Assets click “Open C# Project”.

Hope this helps!

[ComeOnAndSam]

@gogman

I was having the exact same issue. This fix worked for me: Close Visual Studio, then in Unity under File → Build Settings, check the Development Build box, then under Assets click “Open C# Project”.

Hope this helps!

I’ve always had that checked so it is not the case. However, another thread says VS2022 17.6 is meant to fix this issue so hopefully that will do it.

[Mooktar]

I was running into this issue and @gogman 's solution worked for me. (Unity version 2021.3.25f1, VisualStudio Version 16.11.13) Thank you!

[ShokWayve]

@gogman

I was having the exact same issue. This fix worked for me: Close Visual Studio, then in Unity under File → Build Settings, check the Development Build box, then under Assets click “Open C# Project”.

Hope this helps!

This also worked for me. Thanks.