dotnet new mvc experiance on macos seems broken - problems window full of issues

[solrevdev]

Please paste the output from your clipboard## Issue Description ##

Steps to Reproduce

For me, running dotnet new mvc then code . in the terminal followed by dotnet build in VSCode's terminal window compiled fine but showed approx 120 problems in VSCode's problems window.

Red squiggles everywhere!

For more info and screenshots see this twitter thread https://twitter.com/solrevdev/status/1207634539469819904

Expected Behavior

Problems window in VSCode should have no errors

Actual Behavior

Problems window in VSCode full of errors

Logs

OmniSharp log

Starting OmniSharp server at 20/12/2019, 09:14:21 Target: /Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp OmniSharp server started with Mono 6.6.0. Path: /Users/solrevdev/.vscode-insiders/extensions/ms-vscode.csharp-1.21.9/.omnisharp/1.34.9/omnisharp/OmniSharp.exe PID: 61325 [info]: OmniSharp.Stdio.Host Starting OmniSharp on MacOS 10.14.6 (x64) [info]: OmniSharp.Services.DotNetCliService DotNetPath set to dotnet [info]: OmniSharp.MSBuild.Discovery.MSBuildLocator Located 2 MSBuild instance(s) 1: Mono 16.3 - "/usr/local/Cellar/mono/6.6.0.161/lib/mono/msbuild/Current/bin" 2: StandAlone 16.3 - "/Users/solrevdev/.vscode-insiders/extensions/ms-vscode.csharp-1.21.9/.omnisharp/1.34.9/omnisharp/.msbuild/Current/Bin" [info]: OmniSharp.MSBuild.Discovery.MSBuildLocator Registered MSBuild instance: Mono 16.3 - "/usr/local/Cellar/mono/6.6.0.161/lib/mono/msbuild/Current/bin" CscToolExe = csc.exe CscToolPath = /Users/solrevdev/.vscode-insiders/extensions/ms-vscode.csharp-1.21.9/.omnisharp/1.34.9/omnisharp/.msbuild/Current/Bin/Roslyn [info]: OmniSharp.Cake.CakeProjectSystem Detecting Cake files in '/Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp'. [info]: OmniSharp.Cake.CakeProjectSystem Could not find any Cake files [info]: OmniSharp.MSBuild.ProjectSystem No solution files found in '/Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp' [info]: OmniSharp.MSBuild.ProjectManager Queue project update for '/Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp/MvcApp.csproj' [info]: OmniSharp.Script.ScriptProjectSystem Detecting CSX files in '/Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp'. [info]: OmniSharp.Script.ScriptProjectSystem Could not find any CSX files [info]: OmniSharp.WorkspaceInitializer Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpFormattingWorkspaceOptionsProvider, Order: 0 [info]: OmniSharp.MSBuild.ProjectManager Loading project: /Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp/MvcApp.csproj [info]: OmniSharp.WorkspaceInitializer Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.RenameWorkspaceOptionsProvider, Order: 100 [info]: OmniSharp.WorkspaceInitializer Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.EditorConfigWorkspaceOptionsProvider, Order: 200 [info]: OmniSharp.WorkspaceInitializer Configuration finished. [info]: OmniSharp.Stdio.Host Omnisharp server running using Stdio at location '/Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp' on host 61053. [info]: OmniSharp.MSBuild.ProjectManager Successfully loaded project file '/Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp/MvcApp.csproj'. [info]: OmniSharp.MSBuild.ProjectManager Adding project '/Users/solrevdev/Dropbox/Projects/example code/dropbox/MvcApp/MvcApp.csproj' [info]: OmniSharp.MSBuild.ProjectManager Update project: MvcApp [warn]: OmniSharp.MSBuild.PackageDependencyChecker MvcApp: Did not find 'Microsoft.NETCore.App' in lock file. [info]: OmniSharp.Roslyn.CSharp.Services.Diagnostics.CSharpDiagnosticWorkerWithAnalyzers Solution initialized -> queue all documents for code analysis. Initial document count: 6.

C# log

Emty

Environment information

VSCode version: 1.42.0-insider C# Extension: 1.21.9

Mono Information

OmniSharp using global mono :6.6.0

Dotnet Information

.NET Core SDK (reflecting any global.json): Version: 3.1.100 Commit: cd82f021f4 Runtime Environment: OS Name: Mac OS X OS Version: 10.14 OS Platform: Darwin RID: osx.10.14-x64 Base Path: /usr/local/share/dotnet/sdk/3.1.100/ Host (useful for support): Version: 3.1.0 Commit: 65f04fb6db .NET Core SDKs installed: 3.1.100 [/usr/local/share/dotnet/sdk] .NET Core runtimes installed: Microsoft.AspNetCore.App 3.1.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 2.1.13 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 3.1.0 [/usr/local/share/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| |---|---|---| |advanced-new-file|patbenatar|1.2.0| |arc-plus|ph-hawkins|1.0.1| |auto-close-tag|formulahendry|0.5.6| |auto-rename-tag|formulahendry|0.1.1| |azure-account|ms-vscode|0.8.7| |bash-debug|rogalmic|0.3.6| |bash-ide-vscode|mads-hartmann|1.4.0| |beautify|HookyQR|1.5.0| |bracket-pair-colorizer|CoenraadS|1.0.61| |chat|karigari|0.31.0| |code-settings-sync|Shan|3.4.3| |code-spell-checker|streetsidesoftware|1.7.20| |code-streaming|gitduck|0.0.33| |csharp|ms-vscode|1.21.9| |csharpextensions|jchannon|1.3.1| |dark-plus-material|vangware|2.2.1| |debugger-for-chrome|msjsdiag|4.12.3| |docomment|k--kato|0.1.8| |dotenv|mikestead|1.0.1| |dotnet-test-explorer|formulahendry|0.7.1| |EditorConfig|EditorConfig|0.14.4| |editorconfiggenerator|nepaul|0.2.1| |emojisense|bierner|0.5.3| |es7-react-js-snippets|dsznajder|2.5.0| |gc-excelviewer|GrapeCity|2.1.32| |gistfs|vsls-contrib|0.0.23| |githistory|donjayamanne|0.4.11| |github-plus-theme|thenikso|1.2.1| |gitlens|eamodio|10.2.0| |horizon-theme-vscode|jolaleye|2.0.2| |html-css-class-completion|Zignd|1.19.0| |html-snippets|abusaidm|0.2.1| |identical-sublime-monokai-csharp-theme-colorizer|maximetinu|0.11.1| |linux-themes|SolarLiner|1.0.1| |LiveServer|ritwickdey|5.6.1| |LogFileHighlighter|emilast|2.6.0| |markdown-all-in-one|yzhang|2.6.1| |material-icon-theme|PKief|3.9.2| |material-palenight-theme|whizkydee|1.9.7| |material-theme|zhuangtongfa|3.2.1| |msbuild-project-tools|tintoy|0.3.2| |night-owl|sdras|1.1.3| |noctis|liviuschera|10.22.0| |npm-intellisense|christian-kohler|1.3.0| |nuget-reverse-package-search|jesschadwick|0.1.68| |one-monokai|azemoh|0.4.4| |partial-diff|ryu1kn|1.4.0| |path-intellisense|christian-kohler|1.4.2| |polacode|pnp|0.3.4| |powershell|ms-vscode|2019.12.0| |prettier-vscode|esbenp|3.17.0| |python|ms-python|2019.12.54270-dev| |quicktype|quicktype|12.0.46| |quokka-vscode|WallabyJs|1.0.267| |razor-snippets-for-asp-net-core|aledev29|0.0.3| |regex|chrmarti|0.2.0| |remote-containers|ms-vscode-remote|0.96.0| |remote-ssh|ms-vscode-remote|0.48.0| |remote-ssh-edit|ms-vscode-remote|0.48.0| |remote-ssh-explorer|ms-vscode-remote|0.48.0| |remote-wsl|ms-vscode-remote|0.41.6| |rest-client|humao|0.23.0| |roslynator|josefpihrt-vscode|2.2.0| |shell-format|foxundermoon|6.1.3| |sort-lines|Tyriar|1.9.0| |sqltools|mtxr|0.21.5| |swagger-viewer|Arjun|2.2.2| |theme-cobalt2|wesbos|2.1.6| |theme-dracula|dracula-theme|2.19.0| |theme-monokai-pro-vscode|monokai|1.1.14| |theme-panda|tinkertrain|1.3.0| |theme-setimonokai|SmukkeKim|0.0.1| |transformer|dakara|1.6.0| |vetur|octref|0.22.6| |viml|dunstontc|0.1.7| |vsc-material-theme|Equinusocio|30.0.0| |vscode-css-peek|pranaygp|3.0.2| |vscode-custom-css|be5invis|3.0.9| |vscode-docker|ms-azuretools|0.9.0| |vscode-eslint|dbaeumer|2.0.6| |vscode-firefox-debug|firefox-devtools|2.6.1| |vscode-html-css|ecmel|0.2.3| |vscode-icons|vscode-icons-team|9.6.0| |vscode-language-pack-en-GB|MS-CEINTL|1.41.2| |vscode-mysql|formulahendry|0.4.0| |vscode-npm-script|eg2|0.3.10| |vscode-nuget-package-manager|jmrog|1.1.6| |vscode-openapi|42Crunch|2.0.2| |vscode-peacock|johnpapa|3.2.0| |vscode-remote-extensionpack|ms-vscode-remote|0.19.0| |vscode-sort-json|richie5um2|1.18.0| |vscode-surround|yatki|1.0.2| |vscode-theme-onedark|akamud|2.1.0| |vscode-theme-onelight|akamud|2.1.0| |vscode-todo-plus|fabiospampinato|4.14.1| |vscode-trello-viewer|Ho-Wan|0.6.0| |vscode-typescript-tslint-plugin|ms-vscode|1.2.3| |vscode-wakatime|WakaTime|2.2.1| |vscode-yaml|redhat|0.6.1| |vscodeintellicode|VisualStudioExptTeam|1.2.2| |vsliveshare|ms-vsliveshare|1.0.1404| |vsliveshare-audio|ms-vsliveshare|0.1.80| |vsliveshare-pack|ms-vsliveshare|0.3.4| |vsonline|ms-vsonline|1.0.1424| |winteriscoming|johnpapa|1.3.0| |wrapSelection|konstantin|0.6.8| |xml|DotJoshJohnson|2.5.0|;

[filipw]

looks like the problem is i nthe Cellar installation of Mono. Try installing mono 6.6.0 from the official installer https://www.mono-project.com/download/stable/ or set "omnisharp.useGlobalMono": "never"

[solrevdev]

Success! 🎉

Thank you @filipw that was indeed the issue!

So for completeness, these are the steps I took.

I downloaded version 6.4.0.198 from the mono site (as I have Visual Studio for macOS also installed) and ran the installer.

I then ran source .zshrc from my terminal to refresh things followed by mono --version

So this is the version now installed globally.

I then restarted VSCode and 🎉

[solrevdev]

I forgot to add thank you very much @filipw !

🙏

[filipw]

great 👍