Dereference of a possibly null reference.

The behavior of 'StringBuilder.Append(ref StringBuilder.AppendInterpolatedStringHandler)' could vary based on the current user's locale settings. Replace this call in 'PptxConverter.ConvertShape(string, TextBody, ShapeProperties, IList<Control>)' with a call to 'StringBuilder.Append(IFormatProvider, ref StringBuilder.AppendInterpolatedStringHandler)'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1305)

The behavior of 'StringBuilder.Append(ref StringBuilder.AppendInterpolatedStringHandler)' could vary based on the current user's locale settings. Replace this call in 'PptxConverter.ConvertShape(string, TextBody, ShapeProperties, IList<Control>)' with a call to 'StringBuilder.Append(IFormatProvider, ref StringBuilder.AppendInterpolatedStringHandler)'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1305)

Type 'Program' 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)

Type 'PptxConverter' 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)

The behavior of 'int.ToString()' could vary based on the current user's locale settings. Replace this call in 'ExampleGenerator.GenerateApp(int, IList<string>)' with a call to 'int.ToString(IFormatProvider)'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1305)

The behavior of 'int.ToString()' could vary based on the current user's locale settings. Replace this call in 'ExampleGenerator.GenerateApp(int, IList<string>)' with a call to 'int.ToString(IFormatProvider)'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1305)

Type '__Type7B66124CC89186D7' implements generic WinRT interfaces which requires generated code using unsafe for trimming and AOT compatibility if passed across the WinRT ABI. Project needs to be updated with '<AllowUnsafeBlocks>true</AllowUnsafeBlocks>'. (https://github.com/microsoft/CsWinRT/tree/master/src/Authoring/WinRT.SourceGenerator/AnalyzerReleases.Shipped.md)

Type '__Type4CDFB8B4DE0F3249' implements generic WinRT interfaces which requires generated code using unsafe for trimming and AOT compatibility if passed across the WinRT ABI. Project needs to be updated with '<AllowUnsafeBlocks>true</AllowUnsafeBlocks>'. (https://github.com/microsoft/CsWinRT/tree/master/src/Authoring/WinRT.SourceGenerator/AnalyzerReleases.Shipped.md)

Class 'App' implements WinRT interface(s) IApplicationOverrides, IXamlMetadataProvider generated using an older version of CsWinRT. Update to a projection generated using CsWinRT 2.1.0 or later for trimming and AOT compatibility. (https://github.com/microsoft/CsWinRT/tree/master/src/Authoring/WinRT.SourceGenerator/AnalyzerReleases.Shipped.md)

The target framework 'net7.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.

The target framework 'net7.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.