Build failures due to CSharpDiagnosticAnalyzerApiUsageAnalyzer

[sharwell]

Analyzer package

Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerApiUsageAnalyzer

Package Version

v2.6.1

Expected behavior

Build succeeds.

Actual behavior

https://ci.appveyor.com/project/sharwell/stylecopanalyzers/build/1.0.3466

CSC : error AD0001: Analyzer 'Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerApiUsageAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'. [C:\projects\stylecopanalyzers\StyleCop.Analyzers\StyleCop.Analyzers.Test.CSharp7\StyleCop.Analyzers.Test.CSharp7.csproj]

[mavasani]

Dupe of #1711

[mavasani]

Re-opening as @sharwell mentioned the failing build didn't have any error types, which was the cause of the crash in #1711.

[alphaleonis]

We also get a whole heap of these warnings after upgrading to VS 15.8. Haven't been able to make a simple repro however, but I'm guessing you're on top of this? Any timeline for a fix?

[mavasani]

I have a repro:

namespace N
{
    internal delegate void MyDelegate();
}

[adamralph]

In which version was this fixed?

I'm using 2.10.0 and I'm having this problem.

[adamralph]

FWIW, I've confirmed that 2.4.0 does not contain this bug, so I've reverted to that version.

FYI although 2.6.1 contains this bug, I didn't want to revert to 2.6.0 because 2.6.1 must be fixing some other bugs, and 2.6.1 is listed as the supported version in the 2.6.x range.

I can't upgrade past 2.10.0 because my analyzer needs to support VS 2017.