The current .NET SDK does not support targeting .NET 9.0. Either target .NET 8.0 or lower, or use a version of the .NET SDK that supports .NET 9.0. Download the .NET SDK from https://aka.ms/dotnet/download

'X509Certificate2.X509Certificate2(byte[], string?)' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'X509Certificate2.X509Certificate2(string)' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

The file header is missing or not located at the top of the file. (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1633.md)

Closing brace should be followed by blank line (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1513.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

The file header is missing or not located at the top of the file. (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1633.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

Avoid inexact read with 'System.Net.Sockets.NetworkStream.Read(byte[], int, int)' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2022)