Errors during solution loading

[SuddenGunter]

Issue Description

If I look to Output tab in vscode, and after some projects are loaded, other fails to load with same error (see logs attached).
May it be caused ~300 projects in same solution?
May it be caused that path for referenced projects in csproj looks like windows-specific (\ - with this char instead of /)?
All projects in solution are .Net Core 2.1 + some .Net Standard 2.0 libraries.

Is there are any useful info I can provide?

Steps to Reproduce

1 Open folder with solution in vscode
2 Open output tab

Expected Behavior

No errors in output tab

Actual Behavior

Errors in output tab

Logs

OmniSharp log

[info]: OmniSharp.MSBuild.ProjectManager Update project: _PROJ_NAME_.PhoneVerification.API [fail]: OmniSharp.MSBuild.ProjectManager Exception thrown while calling event sinks System.InvalidOperationException: object_op ---> System.EntryPointNotFoundException: SystemNative_RealPath at (wrapper managed-to-native) Interop+Sys.RealPath(string) at System.IO.CoreFX.FileSystemWatcher+RunningInstance.Start () [0x00000] in <3f22ea5f607241f9a072ae168e2509e2>:0 at System.IO.CoreFX.FileSystemWatcher.StartRaisingEvents () [0x00067] in <3f22ea5f607241f9a072ae168e2509e2>:0 at System.IO.CoreFX.FileSystemWatcher.StartRaisingEventsIfNotDisposed () [0x00019] in <3f22ea5f607241f9a072ae168e2509e2>:0 at System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0001d] in <3f22ea5f607241f9a072ae168e2509e2>:0 at (wrapper remoting-invoke-with-check) System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents(bool) at System.IO.CoreFXFileSystemWatcherProxy+<>c.b__9_0 (System.IO.CoreFX.FileSystemWatcher internal_fsw, System.IO.FileSystemWatcher fsw) [0x00048] in <3f22ea5f607241f9a072ae168e2509e2>:0 at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action`4[T1,T2,T3,T4] map_op, System.Action`2[T1,T2] object_op, System.Object handle, System.Action`2[T1,T2] cancel_op) [0x00184] in <3f22ea5f607241f9a072ae168e2509e2>:0 --- End of inner exception stack trace --- at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action`4[T1,T2,T3,T4] map_op, System.Action`2[T1,T2] object_op, System.Object handle, System.Action`2[T1,T2] cancel_op) [0x001a6] in <3f22ea5f607241f9a072ae168e2509e2>:0 at System.IO.CoreFXFileSystemWatcherProxy.StartDispatching (System.Object handle) [0x00004] in <3f22ea5f607241f9a072ae168e2509e2>:0 at System.IO.FileSystemWatcher.Start () [0x0001b] in <3f22ea5f607241f9a072ae168e2509e2>:0 at System.IO.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0003d] in <3f22ea5f607241f9a072ae168e2509e2>:0 at (wrapper remoting-invoke-with-check) System.IO.FileSystemWatcher.set_EnableRaisingEvents(bool) at Microsoft.AspNetCore.Razor.OmniSharpPlugin.MSBuildProjectDocumentChangeDetector.ProjectLoaded (OmniSharp.MSBuild.Notification.ProjectLoadedEventArgs loadedArgs) [0x00266] in :0 at OmniSharp.MSBuild.ProjectManager.ProcessQueue (System.Threading.CancellationToken cancellationToken) [0x00198] in :0 [info]: OmniSharp.MSBuild.ProjectManager Update project: _PROJ_NAME_.Common.Models [fail]: OmniSharp.MSBuild.ProjectManager Exception thrown while calling event sinks

Environment information

VSCode version: 1.35.0
C# Extension: 1.19.1

Mono Information

OmniSharp using global mono :5.20.1

Dotnet Information

.NET Core SDK (reflecting any global.json): Version: 2.2.107 Commit: 2212cac826

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/2.2.107/

Host (useful for support):
Version: 2.2.5
Commit: 0a3c9209c0

.NET Core SDKs installed:
2.1.700 [/usr/local/share/dotnet/sdk]
2.2.103 [/usr/local/share/dotnet/sdk]
2.2.107 [/usr/local/share/dotnet/sdk]

.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.11 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.2.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.2.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.11 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.2.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.2.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.1.11 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 2.2.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 2.2.5 [/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
csharp	ms-vscode	1.19.1
markdown-all-in-one	yzhang	2.3.1
material-icon-theme	PKief	3.8.0
Material-theme	zhuangtongfa	2.24.1
rainbow-csv	mechatroner	1.1.1
vscode-docker	PeterJausovec	0.6.2
vscode-icons	vscode-icons-team	8.7.0
vscode-yaml	redhat	0.4.1

[rchande]

@SuddenGunter Can you try setting omnisharp.useGlobalMono to never and see if that helps? I wonder if this is an issue with the specific mono installation on your machine (given that it's crashing in .net framework code)

[SuddenGunter]

hmm
maybe this is the issue, yeah. I forget that there are several .Net FW projects in that solution. If I'm not interest in them - so can I just ignore this crash warnings?