Omnisharp build fails with "Found implicit package reference 'Microsoft.NETCore.App', but none of the versions in the lock file"

[ajaybhargavb]

Issue Description

Omnisharp build fails with Found implicit package reference 'Microsoft.NETCore.App', but none of the versions in the lock file ("3.0.0-preview3-27414-8") satisfy [3.0.0, )

This works fine when running dotnet restore or dotnet build in command line.

Steps to Reproduce

• dotnet new console
• code .

Expected Behavior

Omnisharp initializes with no build errors

Actual Behavior

Omnisharp initialization fails

Logs

OmniSharp log

Starting OmniSharp server at 3/19/2019, 10:37:53 AM Target: /Users/ajbaaska/Github/temp/VSCodeTest

OmniSharp server started with Mono 5.12.0.
Path: /Users/ajbaaska/.vscode/extensions/ms-vscode.csharp-1.17.1/.omnisharp/1.32.12-beta.39/omnisharp/OmniSharp.exe
PID: 85947

Starting OmniSharp on MacOS 10.14 (x64)
info: OmniSharp.Services.DotNetCliService
DotNetPath set to dotnet
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
Located 2 MSBuild instance(s)
1: Mono 15.0 - "/Library/Frameworks/Mono.framework/Versions/5.12.0/lib/mono/msbuild/15.0/bin"
2: StandAlone 15.0 - "/Users/ajbaaska/.vscode/extensions/ms-vscode.csharp-1.17.1/.omnisharp/1.32.12-beta.39/omnisharp/msbuild/15.0/Bin"
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
Registered MSBuild instance: Mono 15.0 - "/Library/Frameworks/Mono.framework/Versions/5.12.0/lib/mono/msbuild/15.0/bin"
CscToolPath = /Users/ajbaaska/.vscode/extensions/ms-vscode.csharp-1.17.1/.omnisharp/1.32.12-beta.39/omnisharp/msbuild/15.0/Bin/Roslyn
CscToolExe = csc.exe
info: OmniSharp.Cake.CakeProjectSystem
Detecting Cake files in '/Users/ajbaaska/Github/temp/VSCodeTest'.
info: OmniSharp.Cake.CakeProjectSystem
Could not find any Cake files
info: OmniSharp.WorkspaceInitializer
Project system 'OmniSharp.DotNet.DotNetProjectSystem' is disabled in the configuration.
info: OmniSharp.MSBuild.ProjectSystem
No solution files found in '/Users/ajbaaska/Github/temp/VSCodeTest'
info: OmniSharp.MSBuild.ProjectManager
Queue project update for '/Users/ajbaaska/Github/temp/VSCodeTest/VSCodeTest.csproj'
info: OmniSharp.Script.ScriptProjectSystem
Detecting CSX files in '/Users/ajbaaska/Github/temp/VSCodeTest'.
info: OmniSharp.Script.ScriptProjectSystem
Could not find any CSX files
info: OmniSharp.WorkspaceInitializer
Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpWorkspaceOptionsProvider
info: OmniSharp.WorkspaceInitializer
Configuration finished.
info: OmniSharp.Stdio.Host
Omnisharp server running using Stdio at location '/Users/ajbaaska/Github/temp/VSCodeTest' on host 85924.
info: OmniSharp.MSBuild.ProjectManager
Loading project: /Users/ajbaaska/Github/temp/VSCodeTest/VSCodeTest.csproj
info: OmniSharp.MSBuild.ProjectManager
Successfully loaded project file '/Users/ajbaaska/Github/temp/VSCodeTest/VSCodeTest.csproj'.
info: OmniSharp.MSBuild.ProjectManager
Adding project '/Users/ajbaaska/Github/temp/VSCodeTest/VSCodeTest.csproj'
info: OmniSharp.MSBuild.ProjectManager
Update project: VSCodeTest
[warn]: OmniSharp.MSBuild.PackageDependencyChecker
VSCodeTest: Found implicit package reference 'Microsoft.NETCore.App', but none of the versions in the lock file ("3.0.0-preview3-27414-8") satisfy [3.0.0, )

C# log

Getting latest OmniSharp version information Downloading package 'Latest OmniSharp Version Information' (1 KB).................... Done! Installing OmniSharp Version = 1.32.12-beta.39... Platform: darwin, x86_64

Finished

Environment information

VSCode version: 1.32.3
C# Extension: 1.17.1

Mono Information

OmniSharp using global mono :5.12.0

Dotnet Information

.NET Core SDK (reflecting any global.json): Version: 3.0.100-preview3-010280 Commit: 3b9018c0af

Runtime Environment:
OS Name: Mac OS X
OS Version: 10.14
OS Platform: Darwin
RID: osx.10.14-x64
Base Path: /Users/ajbaaska/Github/aspnet/AspNetCore-Tooling/.dotnet/sdk/3.0.100-preview3-010280/

Host (useful for support):
Version: 3.0.0-preview4-27512-18
Commit: ba06d66839

.NET Core SDKs installed:
3.0.100-preview3-010280 [/Users/ajbaaska/Github/aspnet/AspNetCore-Tooling/.dotnet/sdk]

.NET Core runtimes installed:
Microsoft.AspNetCore.App 3.0.0-preview3-19113-07 [/Users/ajbaaska/Github/aspnet/AspNetCore-Tooling/.dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.1.3 [/Users/ajbaaska/Github/aspnet/AspNetCore-Tooling/.dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 3.0.0-preview3-27414-8 [/Users/ajbaaska/Github/aspnet/AspNetCore-Tooling/.dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 3.0.0-preview4-27512-18 [/Users/ajbaaska/Github/aspnet/AspNetCore-Tooling/.dotnet/shared/Microsoft.NETCore.App]

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

Visual Studio Code Extensions

Extension	Author	Version
csharp	ms-vscode	1.17.1
debugger-for-chrome	msjsdiag	4.11.3
java	redhat	0.41.0
latex-workshop	James-Yu	6.2.2
markdown-pdf	yzane	1.2.0
python	ms-python	2019.2.5558
rainbow-csv	mechatroner	1.0.0
vscode-java-debug	vscjava	0.17.0
vscode-java-dependency	vscjava	0.3.0
vscode-java-pack	vscjava	0.6.0
vscode-java-test	vscjava	0.15.1
vscode-maven	vscjava	0.15.1
vscode-sqlite	alexcvzz	0.6.0
vscodeintellicode	VisualStudioExptTeam	1.1.4

[SheepRock]

Not sure if the same issue, but using dotnet core 3.0.100-preview3-010431 I get the following warning:

[warn]: OmniSharp.MSBuild.PackageDependencyChecker
TestProject: Did not find 'Microsoft.NETCore.App' in lock file.

Also, Ominisharp doesn't work, it can't find any namespace, my entire code get underlined, and there is no auto-completion options.

I'm using C# 1.18.0-beta10

[alizangiabadicode]

i tried to change the target framework and suddenly it get solved!

[johankvint]

I have the same problem.

Installed dotnet core 3.0 on Mac, ran dotnet new webapi, and everything is marked red in VSCode, no intellisense, no packages found.

Builds fine on cli

[filipw]

This is a duplicate of #3290

see #3290 (comment) for workarounds

[stefc]

Works on MacOS 10.14 also only with insert "omnisharp.path": "1.34.4-beta.23" to the settings.json.

OmniSharp server started.
    Path: /Users/stefc/.vscode/extensions/ms-vscode.csharp-1.21.3/.omnisharp/1.34.4-beta.23/run
    PID: 6700

[info]: OmniSharp.Stdio.Host
        Starting OmniSharp on MacOS 10.14.6 (x64)

[filipw]

thanks for confirming the beta fixed it 👍