Omnisharp-vscode: OmniSharp throws when 'dotnet --info' process does not launch properly

[tihoho]

Hey guys!

I have a bug in .sln file loading proccess:
https://forum.unity3d.com/threads/visual-code-unity-integrated-failed.473301/

Please, help!

[DustinCampbell]

Could you provide your OmniSharp Log from that forum post? Note that the error in that screenshot doesn't show a problem with the solution file.

[tihoho]

Dustin, thanks for a feedback.
https://gist.github.com/tihoho/a0ce3f0af6238ddbe7f9d3f7c9a249cb
in link 3 files: Omni log, .sln file, and .csproj

[DustinCampbell]

OK. I've got a suspicion of what's happening. Could you run dotnet --info at the command line and let me know what the output is?

[tihoho]

translate: Error in running application (0x...). For exit press OK.

:(
i have win7 x64, and install dotnet for x64

[DustinCampbell]

Thanks! After looking through the OmniSharp source code, I expected something like that. The issue is that OmniSharp executes dotnet --info to retrieve some information that it uses to support .NET Core projects. However, that code is a bit permissive if the process fails to launch properly. When that happens, it simply carries on with empty data, which ultimately threw an exception.

tl;dr: Your project and solution are fine. The problem is with dotnet on your machine. You _might_ be able to fix the issue by installing a new version of the .NET Core SDK. In the meantime, I'll work on hardening this code path in OmniSharp.

[tihoho]

Dustin, thanks so much! Then I went to reinstall dotnet and other dependent libraries. If it's not difficult for you, skip the link on the SDK, because I'm confused in the abundance of Microsoft products

[DustinCampbell]

Here's a link: https://www.microsoft.com/net/download/core

[tihoho]

Unfortunately it did not help me. The dotnet still runs with the same error :(

[DustinCampbell]

Perhaps try uninstalling the .NET Core SDK from Add/Remove Programs and see if your project loads in VS Code with it removed?

[gregg-miskelly]

You might also try doing the same with the Visual C++ 2015 Redistributable.

[tihoho]

Dustin, his is unbeliveble, but remove Code SDK helped me, now the Omnisharp has earned as it should. Thank you again for all your help! I am suffering with this for the second day.

[DustinCampbell]

Excellent! I'm glad that helped workaround the issue. @gregg-miskelly's solution might also have helped the .NET Core SDK to run properly as well, which would have worked around the issue. I have a fix for the OmniSharp server that will be in PR shortly which will make it more resilient to this issue in the future.