Could not load file or assembly Microsoft.IdentityModel.Tokens problem

I am trying to verify users with a JWT token. The code i used below works perfectly fine in a console application. But when i want to apply it in my azure function it gives me the error: Could not load file or assembly Microsoft.IdentityModel.Tokens. I do have one other azure function in my solution but it doesn't use this NuGet package. I already took a look at this link: Could not load file or assembly 'Microsoft.IdentityModel.Tokens, Version=5.2.0.0. I can't get anything out of that. So what am I doing wrong? Thanks in advance

                    string key = "";
                    var securityKey = new Microsoft.IdentityModel.Tokens.SymmetricSecurityKey(Encoding.UTF8.GetBytes(key));
                    var credentials = new Microsoft.IdentityModel.Tokens.SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256Signature);

                    var header = new JwtHeader(credentials);

                    var payload = new JwtPayload
                    {
                        { "some ", "hello "},
                        { "scope", "http://dummy.com/"},
                    };

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

                    var tokenString = handler.WriteToken(secToken);

                    var token = handler.ReadJwtToken(tokenString);

                    log.LogInformation(token.ToString());