The variable 'e' is declared but never used

Possible null reference argument for parameter 'endpointName' in 'int Validator.ValidateEndpoint(IReadOnlyCollection<IToken> tokens, int startIndex, string endpointName)'.

Possible null reference argument for parameter 's' in 'byte[] Encoding.GetBytes(string s)'.

The variable 'ex' is declared but never used

This call site is reachable on: 'MacCatalyst' 14.0 and later. 'UIDocumentPickerMode.Open' is obsoleted on: 'maccatalyst' 14.0 and later (Use the designated constructors instead.). (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1422)

This call site is reachable on: 'MacCatalyst' 14.0 and later. 'UIDocumentPickerViewController' is obsoleted on: 'maccatalyst' 14.0 and later. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1422)

Dereference of a possibly null reference.

The variable 'ex' is declared but never used

The variable 'ex' is declared but never used