Nvalid parameters

Video SDK Flutter
1

void initState() {
controller.getConsultantsList(widget.id);
final apiKey = ‘DIRLb62XRtOm6YD6Bv5Ltg’;
final apiSecret = ‘6DXqB3KAwNIUOFAxflqqpTsIgrcSnAUa’;
final sessionName = ‘71878749797’; // Replace with your session name
final zoomToken = generateZoomToken(apiKey, apiSecret, sessionName);
controller.sessionToken=zoomToken;
print(‘Zoom Token: $zoomToken’);
super.initState();
}

String generateZoomToken(String apiKey, String apiSecret, String sessionName) {
final Map<String, dynamic> claims = {
‘appKey’: apiKey,
‘iat’: DateTime.now().millisecondsSinceEpoch ~/ 1000,
‘exp’: DateTime.now().add(const Duration(minutes: 15)).millisecondsSinceEpoch ~/ 1000,
‘tokenExp’: DateTime.now().add(const Duration(days: 1)).millisecondsSinceEpoch ~/ 1000,
‘version’: 1,
‘role_type’:0,
‘user_identity’:“BNmh-fHmRWmnCiL1832MDg”,
‘user’: {
‘id’: “start.walid.1@gmail.com”,
‘name’: “walid”,
},
‘tpc’: sessionName,
};

final String encodedHeader = base64Url.encode(utf8.encode(json.encode({'alg': 'HS256', 'typ': 'JWT'})));
final String encodedClaims = base64Url.encode(utf8.encode(json.encode(claims)));

final String signatureInput = '$encodedHeader.$encodedClaims';

// Use the crypto package to compute the Hmac SHA-256 hash
final hmac = Hmac(sha256, utf8.encode(apiSecret));
final Digest signature = hmac.convert(utf8.encode(signatureInput));
final String signatureBase64 = base64Url.encode(signature.bytes);

return '$signatureInput.$signatureBase64';

}
onTap: ()async{
var zoom = ZoomVideoSdk();
InitConfig initConfig = InitConfig(
appGroupId: “group.test.sdk”,//“29591”
domain: “zoom.us”,
enableLog: false,
);
await zoom.initSdk(initConfig);

                       //var eventListener = ZoomVideoSdkEventListener();

                       Map<String, bool> SDKaudioOptions = {
                         "connect": true,
                         "mute": true
                       };
                       Map<String, bool> SDKvideoOptions = {
                         "localVideoOn": true,
                       };
                       JoinSessionConfig joinSession = JoinSessionConfig(
                         sessionName:"71878749797",
                         //sessionPassword: "123",//await zoom.session.getSessionPassword(),//"KpmRyRft3osyOD3R1gKFElMEI4smjQ.1",
                         token: controller.sessionToken,
                         userName:"walid",// "displayName",
                         audioOptions: SDKaudioOptions,
                         videoOptions: SDKvideoOptions,
                         sessionIdleTimeoutMins: 20,
                       );
                       await zoom.joinSession(joinSession);

                     },

this is my code and when call JoinSessionConfig give me error NVALID PARAMETERS