Regression using dotnet format when upgrading from 7.0.203 to 7.0.302

Describe the bug

Running dotnet format or dotnet format --verify-no-changes on a plain webapi c# generated dotnet project errors on 7.0.302 with:

Unhandled exception: System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types.
Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

   at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)
   at System.Reflection.Assembly.GetTypes()
   at Microsoft.CodeAnalysis.Tools.Analyzers.AnalyzerFinderHelpers.<>c.<LoadAnalyzersAndFixers>b__0_0(Assembly assembly)
   at System.Linq.Enumerable.SelectManySingleSelectorIterator`2.MoveNext()
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Enumerable.OfTypeIterator[TResult](IEnumerable source)+MoveNext()
   at System.Collections.Generic.LargeArrayBuilder`1.AddRange(IEnumerable`1 items)
   at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source)
   at System.Collections.Immutable.ImmutableArray.CreateRange[T](IEnumerable`1 items)
   at Microsoft.CodeAnalysis.Tools.Analyzers.AnalyzerFinderHelpers.LoadAnalyzersAndFixers(IEnumerable`1 assemblies)
   at Microsoft.CodeAnalysis.Tools.Analyzers.AnalyzerReferenceInformationProvider.GetAnalyzersAndFixers(Project project)
   at System.Collections.Immutable.ImmutableDictionary.<>c__DisplayClass9_0`3.<ToImmutableDictionary>b__0(TSource element)
   at System.Linq.Utilities.<>c__DisplayClass2_0`3.<CombineSelectors>b__0(TSource x)
   at System.Linq.Enumerable.SelectIListIterator`2.MoveNext()
   at System.Collections.Immutable.ImmutableDictionary`2.AddRange(IEnumerable`1 items, MutationInput origin, KeyCollisionBehavior collisionBehavior)
   at System.Collections.Immutable.ImmutableDictionary`2.AddRange(IEnumerable`1 pairs, Boolean avoidToHashMap)
   at System.Collections.Immutable.ImmutableDictionary`2.AddRange(IEnumerable`1 pairs)
   at System.Collections.Immutable.ImmutableDictionary.ToImmutableDictionary[TSource,TKey,TValue](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 keyComparer, IEqualityComparer`1 valueComparer)
   at System.Collections.Immutable.ImmutableDictionary.ToImmutableDictionary[TSource,TKey,TValue](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector)
   at Microsoft.CodeAnalysis.Tools.Analyzers.AnalyzerReferenceInformationProvider.GetAnalyzersAndFixers(Solution solution, FormatOptions formatOptions, ILogger logger)
   at Microsoft.CodeAnalysis.Tools.Analyzers.AnalyzerFormatter.FormatAsync(Solution solution, ImmutableArray`1 formattableDocuments, FormatOptions formatOptions, ILogger logger, List`1 formattedFiles, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.Tools.CodeFormatter.RunCodeFormattersAsync(Solution solution, ImmutableArray`1 formattableDocuments, FormatOptions formatOptions, ILogger logger, List`1 formattedFiles, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.Tools.CodeFormatter.FormatWorkspaceAsync(FormatOptions formatOptions, ILogger logger, CancellationToken cancellationToken, String binaryLogPath)
   at Microsoft.CodeAnalysis.Tools.FormatCommandCommon.FormatAsync(FormatOptions formatOptions, ILogger`1 logger, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.Tools.Commands.RootFormatCommand.FormatCommandDefaultHandler.InvokeAsync(InvocationContext context)
   at System.CommandLine.Invocation.InvocationPipeline.<>c__DisplayClass4_0.<<BuildInvocationChain>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c__DisplayClass16_0.<<UseParseErrorReporting>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c__DisplayClass11_0.<<UseHelp>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c__DisplayClass21_0.<<UseVersionOption>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c__DisplayClass18_0.<<UseTypoCorrections>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c.<<UseSuggestDirective>b__17_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c__DisplayClass15_0.<<UseParseDirective>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c.<<RegisterWithDotnetSuggest>b__4_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.CommandLineBuilderExtensions.<>c__DisplayClass7_0.<<UseExceptionHandler>b__0>d.MoveNext()
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

File name: 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
 ---> System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

File name: 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
   at System.Reflection.RuntimeAssembly.InternalLoad(AssemblyName assemblyName, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext, RuntimeAssembly requestingAssembly, Boolean throwOnFileNotFound)
   at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyName(AssemblyName assemblyName)
   at Microsoft.CodeAnalysis.DefaultAnalyzerAssemblyLoader.DirectoryLoadContext.Load(AssemblyName assemblyName)
   at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingLoad(AssemblyName assemblyName)
   at System.Runtime.Loader.AssemblyLoadContext.Resolve(IntPtr gchManagedAssemblyLoadContext, AssemblyName assemblyName)
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

File name: 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
 ---> System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

File name: 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
   at System.Reflection.RuntimeAssembly.InternalLoad(AssemblyName assemblyName, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext, RuntimeAssembly requestingAssembly, Boolean throwOnFileNotFound)
   at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyName(AssemblyName assemblyName)
   at Microsoft.CodeAnalysis.DefaultAnalyzerAssemblyLoader.DirectoryLoadContext.Load(AssemblyName assemblyName)
   at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingLoad(AssemblyName assemblyName)
   at System.Runtime.Loader.AssemblyLoadContext.Resolve(IntPtr gchManagedAssemblyLoadContext, AssemblyName assemblyName)

I have verified this happening on both linux and Mac (M1, arm64). The same project with 7.0.203 works.

To Reproduce

1. Run dotnet new webapi
2. Add the following global.json to the root { "sdk": { "version": "7.0.203", "rollForward": "major", "allowPrerelease": false } }
3. Run dotnet format, observe it works
4. Adjust global.json to 7.0.302
5. Run dotnet format, observe the error above

Reproduced on Mac arm64 and linux.

Exceptions (if any)

See full exception of Unhandled exception: System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. above

Further technical details

• Include the output of dotnet --info:

`.NET SDK: Version: 7.0.302 Commit: 990cf98a27

Runtime Environment: OS Name: Mac OS X OS Version: 13.3 OS Platform: Darwin RID: osx.13-arm64 Base Path: /usr/local/share/dotnet/sdk/7.0.302/

Host: Version: 7.0.5 Architecture: arm64 Commit: 8042d61b17

.NET SDKs installed: 7.0.408 [/usr/local/share/dotnet/sdk] 8.0.203 [/usr/local/share/dotnet/sdk] 7.0.302 [/usr/local/share/dotnet/sdk]

.NET runtimes installed: Microsoft.AspNetCore.App 6.0.16 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 7.0.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 6.0.16 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 7.0.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found: None

Environment variables: Not set

global.json file: /Users/adam.knights/testregs/global.json

Learn more: https://aka.ms/dotnet/info

Download .NET: https://aka.ms/dotnet/download`

• The IDE (VS / VS Code/ VS4Mac) you’re running on, and its version: Running dotnet format in the terminal

Also filed as AB#1825560

[jaredpar]

@adam-knights, @Shane32 thanks for reporting. I’m able to reproduce this following the steps in the original post. Effectively use a global.json with the contents

{
  "sdk": {
    "version": "7.0.302",
    "allowPrerelease": false,
    "rollForward": "latestPatch"
  }
}

Then simply

> dotnet new webapi
> dotnet format
Crash

We’re looking into this.

[Shane32]

I’m experiencing the same issue in a GitHub Actions runner. See script below. Worked fine with 7.0.203.

name: Check formatting

on:
  pull_request:
    branches:
      - master

jobs:
  format:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout source
        uses: actions/checkout@v3
      - name: Use .NET Core
        uses: actions/setup-dotnet@v3
        with:
          dotnet-version: 7.0.x
      - name: Install dependencies
        run: dotnet restore
      - name: Check formatting
        run: dotnet format --no-restore --verify-no-changes --severity error

Error:

Could not load file or assembly 'Microsoft.CodeAnalysis, Version=4.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

I can provide a full copy of the stack trace if desired.