Loading ASP.NET Razor project failed with problems '{ expected [razor] csharp(CS1514)' and '} expected [razor] csharp(CS1513)'

[dandanmu]

Environment data

dotnet --info output:

.NET SDK (reflecting any global.json):
Version: 6.0.100-preview.7.21369.19
Commit: cdbd475cb6

Runtime Environment:
OS Name: Mac OS X
OS Version: 10.15
OS Platform: Darwin
RID: osx.10.15-x64
Base Path: /usr/local/share/dotnet/sdk/6.0.100-preview.7.21369.19/

Host (useful for support):
Version: 6.0.0-preview.7.21368.2
Commit: 8d3afa3a4a

.NET SDKs installed:
6.0.100-preview.7.21369.19 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.0-preview.7.21369.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.0-preview.7.21368.2 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

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

VS Code version: 1.58.2

C# Extension version: 1.23.14

OmniSharp log

OmniSharp server started.
Path: /Users/e2euser2/.vscode/extensions/ms-dotnettools.csharp-1.23.14/.omnisharp/1.37.13/run
PID: 2766

Starting OmniSharp on MacOS 10.15.7 (x64)
info: OmniSharp.Services.DotNetCliService
DotNetPath set to dotnet
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
Located 1 MSBuild instance(s)
1: StandAlone 17.0.0 - "/Users/e2euser2/.vscode/extensions/ms-dotnettools.csharp-1.23.14/.omnisharp/1.37.13/omnisharp/.msbuild/Current/Bin"
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
MSBUILD_EXE_PATH environment variable set to '/Users/e2euser2/.vscode/extensions/ms-dotnettools.csharp-1.23.14/.omnisharp/1.37.13/omnisharp/.msbuild/Current/Bin/MSBuild.exe'
info: OmniSharp.MSBuild.Discovery.MSBuildLocator
Registered MSBuild instance: StandAlone 17.0.0 - "/Users/e2euser2/.vscode/extensions/ms-dotnettools.csharp-1.23.14/.omnisharp/1.37.13/omnisharp/.msbuild/Current/Bin"
CscToolExe = csc.exe
MSBuildToolsPath = /Users/e2euser2/.vscode/extensions/ms-dotnettools.csharp-1.23.14/.omnisharp/1.37.13/omnisharp/.msbuild/Current/Bin
CscToolPath = /Users/e2euser2/.vscode/extensions/ms-dotnettools.csharp-1.23.14/.omnisharp/1.37.13/omnisharp/.msbuild/Current/Bin/Roslyn
BypassFrameworkInstallChecks = true
MSBuildExtensionsPath = /Users/e2euser2/.vscode/extensions/ms-dotnettools.csharp-1.23.14/.omnisharp/1.37.13/omnisharp/.msbuild
info: OmniSharp.WorkspaceInitializer
Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpFormattingWorkspaceOptionsProvider, Order: 0
info: OmniSharp.WorkspaceInitializer
Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.Completion.CompletionOptionsProvider, Order: 0
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.ImplementTypeWorkspaceOptionsProvider, Order: 110
info: OmniSharp.WorkspaceInitializer
Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.BlockStructureWorkspaceOptionsProvider, Order: 140
info: OmniSharp.Cake.CakeProjectSystem
Detecting Cake files in '/Users/e2euser2/test3/razor'.
info: OmniSharp.Cake.CakeProjectSystem
Could not find any Cake files
info: OmniSharp.MSBuild.ProjectSystem
No solution files found in '/Users/e2euser2/test3/razor'
info: OmniSharp.MSBuild.ProjectManager
Queue project update for '/Users/e2euser2/test3/razor/razor.csproj'
info: OmniSharp.Script.ScriptProjectSystem
Detecting CSX files in '/Users/e2euser2/test3/razor'.
info: OmniSharp.Script.ScriptProjectSystem
Could not find any CSX files
info: OmniSharp.WorkspaceInitializer
Configuration finished.
info: OmniSharp.Stdio.Host
Omnisharp server running using Stdio at location '/Users/e2euser2/test3/razor' on host 2738.
info: OmniSharp.MSBuild.ProjectManager
Loading project: /Users/e2euser2/test3/razor/razor.csproj
info: OmniSharp.MSBuild.ProjectManager
Successfully loaded project file '/Users/e2euser2/test3/razor/razor.csproj'.
info: OmniSharp.MSBuild.ProjectManager
Adding project '/Users/e2euser2/test3/razor/razor.csproj'
info: OmniSharp.MSBuild.ProjectManager
Update project: razor
Received response for /v2/getcodeactions but could not find request.

Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
at OmniSharp.Helpers.LocationExtensions+<>c.b__0_2 (Microsoft.CodeAnalysis.Document document) [0x00000] in <5d718b9165a845c1b3284ab2a4228fbc>:0
at System.Linq.Utilities+<>c__DisplayClass2_03[TSource,TMiddle,TResult].<CombineSelectors>b__0 (TSource x) [0x00012] in <17e8581c65f940ca8137dd67206f5dbd>:0 at System.Linq.Enumerable+SelectArrayIterator2[TSource,TResult].ToArray () [0x00012] in <17e8581c65f940ca8137dd67206f5dbd>:0
at System.Linq.Enumerable.ToArray[TSource] (System.Collections.Generic.IEnumerable1[T] source) [0x0001f] in <17e8581c65f940ca8137dd67206f5dbd>:0 at OmniSharp.Helpers.LocationExtensions.GetQuickFix (Microsoft.CodeAnalysis.Location location, OmniSharp.OmniSharpWorkspace workspace) [0x00128] in <5d718b9165a845c1b3284ab2a4228fbc>:0 at OmniSharp.Roslyn.CSharp.Services.Navigation.FindUsagesService+<>c__DisplayClass3_0.<Handle>b__2 (Microsoft.CodeAnalysis.Location l) [0x00000] in <5d718b9165a845c1b3284ab2a4228fbc>:0 at System.Linq.Enumerable+SelectEnumerableIterator2[TSource,TResult].MoveNext () [0x00048] in <17e8581c65f940ca8137dd67206f5dbd>:0
at System.Linq.Set1[TElement].UnionWith (System.Collections.Generic.IEnumerable1[T] other) [0x00018] in <17e8581c65f940ca8137dd67206f5dbd>:0
at System.Linq.Enumerable+DistinctIterator1[TSource].FillSet () [0x0000b] in <17e8581c65f940ca8137dd67206f5dbd>:0 at System.Linq.Enumerable+DistinctIterator1[TSource].ToArray () [0x00000] in <17e8581c65f940ca8137dd67206f5dbd>:0
at System.Linq.Buffer1[TElement]..ctor (System.Collections.Generic.IEnumerable1[T] source) [0x0000a] in <17e8581c65f940ca8137dd67206f5dbd>:0
at System.Linq.OrderedEnumerable1+<GetEnumerator>d__3[TElement].MoveNext () [0x0001e] in <17e8581c65f940ca8137dd67206f5dbd>:0 at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList (Newtonsoft.Json.JsonWriter writer, System.Collections.IEnumerable values, Newtonsoft.Json.Serialization.JsonArrayContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000e1] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000d6] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x0008d] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000b2] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x0008d] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000b2] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x00079] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.JsonSerializer.SerializeInternal (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x0023a] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.JsonSerializer.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x00000] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.JsonConvert.SerializeObjectInternal (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializer jsonSerializer) [0x00028] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) [0x00007] in <2676a2da6edc420e890ed28aa4572ee5>:0 at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value) [0x00000] in <2676a2da6edc420e890ed28aa4572ee5>:0 at OmniSharp.Protocol.Packet.ToString () [0x00000] in <9eeefa70512d40c69c79c801305ec785>:0 at System.IO.TextWriter.WriteLine (System.Object value) [0x00028] in <b18e5763ec3f41e68a8fe16d7f5e0bee>:0 at System.IO.TextWriter+SyncTextWriter.WriteLine (System.Object value) [0x00000] in <b18e5763ec3f41e68a8fe16d7f5e0bee>:0 at (wrapper synchronized) System.IO.TextWriter+SyncTextWriter.WriteLine(object) at OmniSharp.Services.SharedTextWriter.ProcessWriteQueue () [0x0001d] in <9eeefa70512d40c69c79c801305ec785>:0 at System.Threading.ThreadHelper.ThreadStart_Context (System.Object state) [0x00014] in <b18e5763ec3f41e68a8fe16d7f5e0bee>:0 at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <b18e5763ec3f41e68a8fe16d7f5e0bee>:0 at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <b18e5763ec3f41e68a8fe16d7f5e0bee>:0 at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state) [0x0002b] in <b18e5763ec3f41e68a8fe16d7f5e0bee>:0 at System.Threading.ThreadHelper.ThreadStart () [0x00008] in <b18e5763ec3f41e68a8fe16d7f5e0bee>:0 [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object at OmniSharp.Helpers.LocationExtensions+<>c.<GetQuickFix>b__0_2 (Microsoft.CodeAnalysis.Document document) [0x00000] in <5d718b9165a845c1b3284ab2a4228fbc>:0 at System.Linq.Utilities+<>c__DisplayClass2_03[TSource,TMiddle,TResult].b__0 (TSource x) [0x00012] in <17e8581c65f940ca8137dd67206f5dbd>:0
at System.Linq.Enumerable+SelectArrayIterator2[TSource,TResult].ToArray () [0x00012] in <17e8581c65f940ca8137dd67206f5dbd>:0 at System.Linq.Enumerable.ToArray[TSource] (System.Collections.Generic.IEnumerable1[T] source) [0x0001f] in <17e8581c65f940ca8137dd67206f5dbd>:0
at OmniSharp.Helpers.LocationExtensions.GetQuickFix (Microsoft.CodeAnalysis.Location location, OmniSharp.OmniSharpWorkspace workspace) [0x00128] in <5d718b9165a845c1b3284ab2a4228fbc>:0
at OmniSharp.Roslyn.CSharp.Services.Navigation.FindUsagesService+<>c__DisplayClass3_0.b__2 (Microsoft.CodeAnalysis.Location l) [0x00000] in <5d718b9165a845c1b3284ab2a4228fbc>:0
at System.Linq.Enumerable+SelectEnumerableIterator2[TSource,TResult].MoveNext () [0x00048] in <17e8581c65f940ca8137dd67206f5dbd>:0 at System.Linq.Set1[TElement].UnionWith (System.Collections.Generic.IEnumerable1[T] other) [0x00018] in <17e8581c65f940ca8137dd67206f5dbd>:0 at System.Linq.Enumerable+DistinctIterator1[TSource].FillSet () [0x0000b] in <17e8581c65f940ca8137dd67206f5dbd>:0
at System.Linq.Enumerable+DistinctIterator1[TSource].ToArray () [0x00000] in <17e8581c65f940ca8137dd67206f5dbd>:0 at System.Linq.Buffer1[TElement]..ctor (System.Collections.Generic.IEnumerable1[T] source) [0x0000a] in <17e8581c65f940ca8137dd67206f5dbd>:0 at System.Linq.OrderedEnumerable1+d__3[TElement].MoveNext () [0x0001e] in <17e8581c65f940ca8137dd67206f5dbd>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList (Newtonsoft.Json.JsonWriter writer, System.Collections.IEnumerable values, Newtonsoft.Json.Serialization.JsonArrayContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000e1] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000d6] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x0008d] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000b2] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x0008d] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000b2] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x00079] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.JsonSerializer.SerializeInternal (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x0023a] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.JsonSerializer.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x00000] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.JsonConvert.SerializeObjectInternal (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializer jsonSerializer) [0x00028] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) [0x00007] in <2676a2da6edc420e890ed28aa4572ee5>:0
at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value) [0x00000] in <2676a2da6edc420e890ed28aa4572ee5>:0
at OmniSharp.Protocol.Packet.ToString () [0x00000] in <9eeefa70512d40c69c79c801305ec785>:0
at System.IO.TextWriter.WriteLine (System.Object value) [0x00028] in :0
at System.IO.TextWriter+SyncTextWriter.WriteLine (System.Object value) [0x00000] in :0
at (wrapper synchronized) System.IO.TextWriter+SyncTextWriter.WriteLine(object)
at OmniSharp.Services.SharedTextWriter.ProcessWriteQueue () [0x0001d] in <9eeefa70512d40c69c79c801305ec785>:0
at System.Threading.ThreadHelper.ThreadStart_Context (System.Object state) [0x00014] in :0
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in :0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in :0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state) [0x0002b] in :0
at System.Threading.ThreadHelper.ThreadStart () [0x00008] in :0

Steps to reproduce

1. Create a new ASP.NET Razor project by doing

   mkdir razor
   cd razor
   dotnet new razor
   

2. Install VS code (if you have not already) https://code.visualstudio.com/Download

3. Launch VSCode and install the C# extension.

4. Install the 1.15 or later C# (by OmniSharp) Extention (View -> Extensions, then type OmniSharp, and click on ‘Install’)

5. Use File -> Open Folder to open the razor folder you have created in step 1

Expected behavior

Razor can open with no problems.

Actual behavior

Problems appear after opening the razor.

Note:

1. Unit test project also repro this issue.
2. This issue not occur with .NET 6 preview6 SDK installed.

[JoeRobich]

The issue is that the templates in Preview 7 are using features (file-scoped namespaces) from a newer release of the Roslyn compiler than OmniSharp references. The fix would be to update the Roslyn compiler dependency as well as the packaged build tools to align with the Preview 7 packages.

[dandanmu]

With the latest C# extension v1.23.14 + SDK:6.0.100-preview.7.21377.35, this issue is not repro.

[JoeRobich]

@dandanmu Thanks for following up. Closing this issue.