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Omnisharp fails on OSX

See original GitHub issue

Issue Description

Omnisharp fails with

OmniSharp requires a complete install of Mono (including MSBuild) to provide language services when omnisharp.useModernNet is disabled in Settings. Please install the latest Mono and restart.

omnisharp.useModernNet is disabled in settings already.

Steps to Reproduce

Just open project

Expected Behavior

Omnisharp should work

Actual Behavior

Omnisharp fails with

OmniSharp requires a complete install of Mono (including MSBuild) to provide language services when omnisharp.useModernNet is disabled in Settings. Please install the latest Mono and restart.

Logs

OmniSharp log

OmniSharp failed to start because of missing requirements. OmniSharp failed to start because of missing requirements. OmniSharp failed to start because of missing requirements. OmniSharp failed to start because of missing requirements.

C# log

empty

Environment information

VSCode version: 1.73.0 C# Extension: 1.25.1

Mono Information

OmniSharp using mono: 6.12.0

Dotnet Information

.NET SDK (reflecting any global.json): Version: 6.0.401 Commit: 0906eae6f8

Runtime Environment: OS Name: Mac OS X OS Version: 13.0 OS Platform: Darwin RID: osx-arm64 Base Path: /usr/local/share/dotnet/sdk/6.0.401/

global.json file: Not found

Host: Version: 6.0.9 Architecture: arm64 Commit: 163a63591c

.NET SDKs installed: 6.0.401 [/usr/local/share/dotnet/sdk]

.NET runtimes installed: Microsoft.AspNetCore.App 6.0.9 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 6.0.9 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Download .NET: https://aka.ms/dotnet-download

Learn about .NET Runtimes and SDKs: https://aka.ms/dotnet/runtimes-sdk-info

Visual Studio Code Extensions

Extension	Author	Version
better-cpp-syntax	jeff-hykin	1.16.3
cpptools-themes	ms-vscode	2.0.0
csharp	ms-dotnettools	1.25.1
csharpier-vscode	csharpier	1.3.5
debugger-for-chrome	msjsdiag	4.13.0
isort	ms-python	2022.4.0
jupyter	ms-toolsai	2022.9.1202862440
jupyter-keymap	ms-toolsai	1.0.0
jupyter-renderers	ms-toolsai	1.0.12
python	ms-python	2022.18.1
remote-containers	ms-vscode-remote	0.262.3
remote-ssh	ms-vscode-remote	0.90.1
remote-ssh-edit	ms-vscode-remote	0.84.0
remote-wsl	ms-vscode-remote	0.72.0
textproto-grammer	thejustinwalsh	0.0.8
vetur	octref	0.36.1
vim	vscodevim	1.24.3
vscode-bazel	BazelBuild	0.6.0
vscode-docker	ms-azuretools	1.22.2
vscode-jupyter-cell-tags	ms-toolsai	0.1.6
vscode-jupyter-slideshow	ms-toolsai	0.1.5
vscode-proto3	zxh404	0.5.5
vscode-pylance	ms-python	2022.11.10
vscode-remote-extensionpack	ms-vscode-remote	0.21.0
vscode-solution-explorer	fernandoescolar	0.7.4
vscode-typescript-tslint-plugin	ms-vscode	1.3.4