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[MacOS] Cannot start OmniSharp because Mono version >=6.4.0 is required." after upgrade to latest vscode version(1.54.1)

See original GitHub issue

My Unity3D project c# do not work after auto upgrade vscode 1.54.1 version today.
I have re-install latest mono(6.12) and dotnet core(3.1.4) but not work still. for detail:

mono --version

Mono JIT compiler version 6.12.0.122 (2020-02/c621c35ffa0 Wed Feb 10 00:51:43 EST 2021)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           
	SIGSEGV:       altstack
	Notification:  kqueue
	Architecture:  amd64
	Disabled:      none
	Misc:          softdebug 
	Interpreter:   yes
	LLVM:          yes(610)
	Suspend:       hybrid
	GC:            sgen (concurrent by default)

dotnet --info

.NET Core SDK (reflecting any global.json):
 Version:   3.1.406
 Commit:    f42e6b201a

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.12
 OS Platform: Darwin
 RID:         osx.10.12-x64
 Base Path:   /usr/local/share/dotnet/sdk/3.1.406/

Host (useful for support):
  Version: 3.1.12
  Commit:  0267ad09c6

.NET Core SDKs installed:
  2.1.4 [/usr/local/share/dotnet/sdk]
  2.1.301 [/usr/local/share/dotnet/sdk]
  3.1.301 [/usr/local/share/dotnet/sdk]
  3.1.406 [/usr/local/share/dotnet/sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.12 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.0.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.12 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:
  https://aka.ms/dotnet-download

other settings:

macos version: 10.12
“omnisharp.useGlobalMono”:“always”
“omnisharp.monoPath”: “/Library/Frameworks/Mono.framework/Versions/Current/Commands/mono”
.zshrc about mono

export MONO_HOME=/Library/Frameworks/Mono.framework/Versions/Current
export PATH=$PATH:$MONO_HOME/bin:$MONO_HOME/Commands

thanks.

Issue Analytics

State:
Created 3 years ago
Comments:15 (4 by maintainers)

Top GitHub Comments

3reactions

heshuimucommented, Mar 8, 2021

I have the same issue starting recently. My copy of mono is installed by Visual Studio for Mac. Removing monoPath setting did work for me.

2reactions

jeffreylanterscommented, Mar 8, 2021

I’m running into the same problem. I’ve set both my monoPath to the current mono build (6.12.0.10) and useGlobalMono to always. When running mono in te terminal, everything seems to work fine. But the Error: Cannot start OmniSharp because Mono version >=6.4.0 is required error remained. Removed the monoPath seems to resolve this issue.

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