Live-share: 1.0.1948.0 - All sorts of code navigation are dead (IntelliSense, Go to definition, error highlighting)

[R2D221]

Describe what happened:
Live Share works and I can see the other person's code, but the IDE experience is subpar because most useful things aren't working (IntelliSense, Go to definition, error highlighting).

What was your system configuration?
Product and Version: Visual Studio 2019 (host is Professional 16.5.4, guest is Community 16.5.4)
OS Version: Windows 10 Pro (host is 1809 build 17763.1039, guest is 1909 build 18363.752)
Live Share Extension Version: 1.0.1948.0, both host and guest
Target Platform or Language: C# WPF (.NET Framework)

Steps to Reproduce / Scenario:

1. Load the solution in Visual Studio in the host
2. Start Live Share
3. Open Live Share in guest
4. You can see the code being shared. It can be edited and everything, but anything beyond typing (eg. IntelliSense, Go to definition, errors in code, even the blue highlight that class names get) is completely nonfunctional.

Please attach logs to this issue:
You can access them via the Live Share: Export Logs command from the command palette (ctrl + shift + p) and attach them to this issue
I couldn't find the logs. Ctrl+Shift+P does nothing on Visual Studio.

Screenshots
Screenshots are hard in this scenario because “IntelliSense not working” looks the same as doing nothing, but I can provide the lack of errors and class highlight:

Here you can see that:

1. Dictionary is misspelled and therefore should highlight an error
2. commodity is a class, but it's not blue as it usually is. Hovering it shows nothing, attempting to Go to definition does nothing (not even an error that the class was not found).
3. And of course, trying to erase it and write it again, in an attempt to fire IntelliSense, does nothing as well.

I'm reporting this error because the similar issues say they were fixed in a later version. I made sure to update both Visual Studio itself and the Live Share extension to the latest version before reporting this.

[Scroungy]

Was going to post this issue after I put it up on the Visual Studio support page, but it looks like you beat me to it. I'm definitely having this problem with the newest version of Live Share, so I've temporarily reverted to the previous one. Can't wait until this one's fixed.

[daytonellwanger]

Hey @R2D221 , thanks for reporting. I'm able to repro, so hopefully we can figure out what's going on and have a fix out soon. I'll keep you posted.

[imunchen]

Same problem here with VS 2019 Version 16.6.2 and Live Share 1.0.2377.0

[imunchen]

Hi team.
Could you provide some information if these features are going to work in Live Share?
The IntelliSense (suggestions) at least.
If I can try some workaround will be even better.
Thank you.

[daytonellwanger]

This issue should be fixed on latest version of Live Share/VS. Are you still seeing things broken? If so, what version of Live Share and VS do you have?

[imunchen]

Hi @daytonellwanger
I update the VS yesterday but the Live Share only updates today.
Now It's working.
Awesome.

[SabyasachiDash]

Hi
This issue is still showing up for me.
Host: VS Professional 2017 15.9.27
Guest: VS Professional 2017 15.9.15
Live Share version on both- 1.0.2900.0
Target Platform: VC++ 17

[daytonellwanger]

Hey @SabyasachiDash , so you're using VS 2017 with C++? What language features aren't working?

• Hover
• Go to definition
• Find all references
• Colorization
• Workspace symbols
• Other?

[SabyasachiDash]

Hi @daytonellwanger ,
1- Hover
2- Go to definition
3- Find all references
4- Colorization
5- Error highlighting
These features are not working. Colorization is there partially, but its not proper.

[SabyasachiDash]

Was going to post this issue after I put it up on the Visual Studio support page, but it looks like you beat me to it. I'm definitely having this problem with the newest version of Live Share, so I've temporarily reverted to the previous one. Can't wait until this one's fixed.

@Scroungy How do you revert to previous versions of LiveShare in Visual Studio? I see instructions for VS Code for this, but not for VS.

[daytonellwanger]

@SabyasachiDash , I don't think Visual Studio currently supports this.

[SabyasachiDash]

Hey @SabyasachiDash , so you're using VS 2017 with C++? What language features aren't working?

• Hover
• Go to definition
• Find all references
• Colorization
• Workspace symbols
• Other?

@daytonellwanger Is there any kind of workaround available for this issue with C++ in VS 2017 ?

[daytonellwanger]

@aletsdelarosa could you investigate?