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

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

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

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

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

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

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

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

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

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

The type name 'exped' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'emit' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'dest' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'pass' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'fluxo' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'fat' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'dup' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'cobr' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'compl' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'extversao' only contains lower-cased ascii characters. Such names may become reserved for the language.

'ServicePointManager' is obsolete: 'WebRequest, HttpWebRequest, ServicePoint, and WebClient are obsolete. Use HttpClient instead. Settings on ServicePointManager no longer affect SslStream or HttpClient.' (https://aka.ms/dotnet-warnings/SYSLIB0014)

'ServicePointManager' is obsolete: 'WebRequest, HttpWebRequest, ServicePoint, and WebClient are obsolete. Use HttpClient instead. Settings on ServicePointManager no longer affect SslStream or HttpClient.' (https://aka.ms/dotnet-warnings/SYSLIB0014)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'SHA1CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

The type name 'compra' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'defensivo' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'fat' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'dup' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'agropecuario' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'cobr' only contains lower-cased ascii characters. Such names may become reserved for the language.

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

'X509Certificate2.PrivateKey' is obsolete: 'X509Certificate2.PrivateKey is obsolete. Use the appropriate method to get the private key, such as GetRSAPrivateKey, or use the CopyWithPrivateKey method to create a new instance with a private key.' (https://aka.ms/dotnet-warnings/SYSLIB0028)

'X509Certificate2.X509Certificate2(byte[], string?, X509KeyStorageFlags)' 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, string?, X509KeyStorageFlags)' 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.PrivateKey' is obsolete: 'X509Certificate2.PrivateKey is obsolete. Use the appropriate method to get the private key, such as GetRSAPrivateKey, or use the CopyWithPrivateKey method to create a new instance with a private key.' (https://aka.ms/dotnet-warnings/SYSLIB0028)

'X509Certificate2.X509Certificate2(byte[], SecureString?, X509KeyStorageFlags)' 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, SecureString?, X509KeyStorageFlags)' 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 variable 'e' is declared but never used

'X509Certificate2.PrivateKey' is obsolete: 'X509Certificate2.PrivateKey is obsolete. Use the appropriate method to get the private key, such as GetRSAPrivateKey, or use the CopyWithPrivateKey method to create a new instance with a private key.' (https://aka.ms/dotnet-warnings/SYSLIB0028)

'X509Certificate2.PrivateKey' is obsolete: 'X509Certificate2.PrivateKey is obsolete. Use the appropriate method to get the private key, such as GetRSAPrivateKey, or use the CopyWithPrivateKey method to create a new instance with a private key.' (https://aka.ms/dotnet-warnings/SYSLIB0028)