Could not locate MSBuild instance to register with OmniSharp

[Kaoruha]

Hello,
I have installed omnisharp-vim with plug-vim.
And success installed omnisharp-roslyn.
But when the server start, it shows the message as title.

Logs like this:
[info]: OmniSharp.Stdio.Host
8 ¦ Starting OmniSharp on kali 2022.2 (x64)
9 [info]: OmniSharp.Services.DotNetCliService
10 ¦ Checking the 'DOTNET_ROOT' environment variable to find a .NET SDK
11 [info]: OmniSharp.Services.DotNetCliService
12 ¦ Using the 'dotnet' on the PATH.
13 [info]: OmniSharp.Services.DotNetCliService
14 ¦ DotNetPath set to dotnet
15 [info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
16 ¦ Located 0 MSBuild instance(s)

I have installed dotnet and mono.

dotnet msbuild -h
Microsoft (R) Build Engine version 17.2.0+41abc5629 for .NET
Copyright (C) Microsoft Corporation. All rights reserved.

mono --version
Mono JIT compiler version 6.8.0.105 (Debian 6.8.0.105+dfsg-3.2 Tue Jun 29 21:01:01 UTC 2021)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com

What should i do to solve this problem?

[nickspoons]

If your project is a .net core project, try using the net6 version of the server. Installation steps described here: #791 (comment)

[Kaoruha]

If your project is a .net core project, try using the net6 version of the server. Installation steps described here: #791 (comment)

Thanks.
The problem solved after setting "g:OmniSharp_server_use_net6 = 1" and reinstall the omnisharp server.