System.ArgumentOutOfRangeException: ‘IDX10603: The algorithm: ‘http://www.w3.org/2001/04/xmldsig-more#hmac-sha256' requires the SecurityKey.KeySize to be greater than ‘128’ bits. KeySize reported: ‘24’.’

I found a error in my usercontroller and resolved the error

userController.cs

[AllowAnonymous]
[HttpPost(“authenticate”)]
public IActionResult Authenticate([FromBody]LoginUserModel loginUserModel)
{
var user = _userService.Authenticate(loginUserModel.UserName, loginUserModel.Password);
//Console.WriteLine(user);
if (user == null)
{
return Unauthorized();
}
var tokenHandler = new JwtSecurityTokenHandler();
var key = Encoding.ASCII.GetBytes(_appSettings.Secret);
var tokenDescriptor = new SecurityTokenDescriptor
{
Subject = new ClaimsIdentity(new Claim[]
{
new Claim(ClaimTypes.Name, loginUserModel.UserName)
}),
Expires = DateTime.UtcNow.AddMinutes(10),
SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)