"Could not match JWT signature to any of the bindings" error meaning when getting access token?

Hi BenCrowe, I'm trying to create an app to do the same thing; generate a JWT to get an access token. Could you do me a massive favor and share your code with me? I'm struggling to get my app to work. Much appreciated if possible! Thank you

Hi BenCrowe, thank you very much for the reply. I'm using C# / console app, and I keep getting the same error you got "Could not match JWT signature to any of the bindings" when I try to get the access token after generating the JWT per the below and posting. I'm certain I have the right key. Below is what I have. Thanks again for any tips, much appreciated!

using Microsoft.IdentityModel.Tokens;
using RestSharp;
using System;

using System.IdentityModel.Tokens.Jwt;

using System.Linq;

using System.Text

string key = System.IO.File.ReadAllText(@"C:\[directory....]\private.key");

var securityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(key));

var credentials = new SigningCredentials
(securityKey, SecurityAlgorithms.HmacSha256Signature);

var header = new JwtHeader(credentials);

var payload = new JwtPayload
{  // payload stuff - double checked - values correct
{"exp",'....''},
{ "iss",",,,,,,"},
{"sub","......."},
{"https://.........",true},
{"aud","......."}
};

var secToken = new JwtSecurityToken(header, payload);
var handler = new JwtSecurityTokenHandler();

var tokenString = handler.WriteToken(secToken);

Console.WriteLine(tokenString);
Console.WriteLine("Consume Token");

var token = handler.ReadJwtToken(tokenString);

Console.WriteLine(token.Payload.First().Value);