code analysis throws AD0001 and does not report the correct error

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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Hello
One typical code error triggers the correct message as seen in Output
3>D:\JMB\System\VB.net\Net8_DLLs_Tests\JMF_Test_Globals_JMF_Test_Globals.vb(70,19): error BC30266: 'Public Overrides Sub mgrs_newdispose([eND] As jmcore_globals.ND_enum)' cannot override 'Protected MustOverride Sub mgrs_NewDispose([eND] As jmcore_globals.ND_enum)' because they have different access levels.
But in the Error List tab a rather confusing message appears and the error is not reported.
Analyzer 'Microsoft.CodeAnalysis.Diagnostics.VisualBasic.VisualBasicCompilerDiagnosticAnalyzer' threw an exception of type 'System.ArgumentException' with message 'Reported diagnostic 'BC30266' has a source location in file 'D:\JMB\System\VB.net\Net8_DLLs\JMCore\sources JMCore\ZMgrs.vb', which is not part of the compilation being analyzed. (Parameter 'diagnostic')'.
Exception occurred with following context:
Compilation: JMF_Test_PJ
SyntaxTree: D:\JMB\System\VB.net\Net8_DLLs_Tests\JMF_Test_Globals_JMF_Test_Globals.vb

System.ArgumentException: Reported diagnostic 'BC30266' has a source location in file 'D:\JMB\System\VB.net\Net8_DLLs\JMCore\sources JMCore\ZMgrs.vb', which is not part of the compilation being analyzed. (Parameter 'diagnostic')
at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalysisContextHelpers.VerifyDiagnosticLocationInCompilation(String id, Location location, Compilation compilation)
at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalysisContextHelpers.VerifyDiagnosticLocationsInCompilation(Diagnostic diagnostic, Compilation compilation)
at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalysisContextHelpers.VerifyArguments(Diagnostic diagnostic, Compilation compilation, Func3 isSupportedDiagnostic, CancellationToken cancellationToken) at Microsoft.CodeAnalysis.Diagnostics.SemanticModelAnalysisContext.ReportDiagnostic(Diagnostic diagnostic) at Microsoft.CodeAnalysis.Diagnostics.CompilerDiagnosticAnalyzer.CompilationAnalyzer.ReportDiagnostics(ImmutableArray1 diagnostics, Action1 reportDiagnostic, Func2 locationFilter, ImmutableDictionary2 properties) at Microsoft.CodeAnalysis.Diagnostics.CompilerDiagnosticAnalyzer.CompilationAnalyzer.AnalyzeSemanticModel(SemanticModelAnalysisContext context) at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteAndCatchIfThrows_NoLock[TArg](DiagnosticAnalyzer analyzer, Action1 analyze, TArg argument, Nullable`1 info, CancellationToken cancellationToken)

Suppress the following diagnostics to disable this analyzer: AD0001, BC2001, .....very long list

If you are not aware of this error it may be quite misleading.
In my case this happens if a routine declared with "protected" in the base class is overridden with a routine declared Public in the inheriting class
in the inheriting class
Overrides Sub mgrs_newdispose([eND] As ND_enum)
Throw New NotImplementedException() ' there is no sub project in this case (only JMCore)
End Sub
and in the base class
Protected MustOverride Sub mgrs_NewDispose([eND] As ND_enum) Implements IMgr_DLLorPJ.mgrs_NewDispose
This error has been here for a long time.
Thanks in advance

Windows 11 up to date, Visual Studio Preview up to date, Net 8.0. Happens on all VS releases

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Original Comments

Feedback Bot on 2/3/2025, 01:13 AM:

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Feedback Bot on 2/3/2025, 07:03 AM:

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