Process completed with exit code 1.

Non-nullable property 'InterfaceType' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'ProjectedClassType' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'Clsids' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference return.

Member 'SlowMethod3' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'SlowMethod2' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Type 'TestClass' can be sealed because it has no subtypes in its containing assembly and is not externally visible (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1852)

Avoid multiple blank lines (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide2000)

Avoid multiple blank lines (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide2000)

Remove unused parameter 'extension' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide0060)

Member 'SlowMethod2' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'SlowMethod3' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Type 'TestClass' can be sealed because it has no subtypes in its containing assembly and is not externally visible (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1852)

Possible null reference return.

Dereference of a possibly null reference.

Avoid multiple blank lines (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide2000)

Avoid multiple blank lines (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide2000)