Arch Linux: "The SDK 'Microsoft.Net.Sdk' specified could not be found."

Environment data

dotnet --info output:

.NET Core SDK (reflecting any global.json):
 Version:   2.2.102
 Commit:    96ff75a873

Runtime Environment:
 OS Name:     arch
 OS Version:  
 OS Platform: Linux
 RID:         arch-x64
 Base Path:   /opt/dotnet/sdk/2.2.102/

Host (useful for support):
  Version: 2.2.1
  Commit:  878dd11e62

.NET Core SDKs installed:
  2.2.102 [/opt/dotnet/sdk]

.NET Core runtimes installed:
  Microsoft.NETCore.App 2.2.1 [/opt/dotnet/shared/Microsoft.NETCore.App]

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

VS Code version:

1.30.2

C# Extension version:

1.17.1

Steps to reproduce

Create new console project using dotnet new console, open VSCode either via start menu or command line.

Expected behavior

Projects loads fine

Actual behavior

Omnisharp loads and displays the mentioned issue above.

Workaround

I found at least a workaround to fix this issue when opening VSCode via command line.
Unfortunately I haven’t yet found a way to solve it when starting via start menu.

Fix:

• add environment variable MSBuildSDKsPath=/opt/dotnet/sdk/2.2.102/Sdks
• open project file, replace <Project Sdk="Microsoft.Net.Sdk"> with <Project Sdk="Microsoft.NET.Sdk"> (uppercased Net)

I’m using Arch Linux with KDE, pretty clean/new system.
Used latest Ubuntu before, no problems at all.

Although the workaround works for now, I guess it will break everytime a different SDK version gets used.

[virtualdreams]

Create the file /etc/profile.d/dotnet.sh

export DOTNET_ROOT=/opt/dotnet
export MSBuildSDKsPath=$DOTNET_ROOT/sdk/$(${DOTNET_ROOT}/dotnet --version)/Sdks
export PATH=${PATH}:${DOTNET_ROOT}

Found here: https://bugs.archlinux.org/task/60903?project=5&string=dotnet-host

[mwaqasaziz]

this resolved mine https://github.com/dotnet/corefx/issues/41481#issuecomment-555555762