---
title: "Comment by yawar on \"AWS Amplify For Flutter Part 3: Amplify Authentication\" | Hashnode"
description: "thank you for your article, but i have a problem when i run the code to SignInWithWebUI it shows nothing on the screen and show this in debug console: D / AWSMo"
url: "https://hashnode.com/posts/aws-amplify-for-flutter-part-3-amplify-authentication/60a4ba875c1fcb4077364667/comment/63068b140e45d758b7f80e64"
---

[Discussion](https://hashnode.com/posts/aws-amplify-for-flutter-part-3-amplify-authentication/60a4ba875c1fcb4077364667)

Comment [AWS Amplify For Flutter Part 3: Amplify Authentication](https://hashnode.com/posts/aws-amplify-for-flutter-part-3-amplify-authentication/60a4ba875c1fcb4077364667)

[yawar](https://hashnode.com/@yara0)

[Aug 24, 2022](https://hashnode.com/posts/aws-amplify-for-flutter-part-3-amplify-authentication/60a4ba875c1fcb4077364667/comment/63068b140e45d758b7f80e64)

thank you for your article, but i have a problem when i run the code to SignInWithWebUI it shows nothing on the screen and show this in debug console:

```
D/AWSMobileClient( 8356): onSuccess: HostedUI signed-in
D/AWSMobileClient( 8356): _federatedSignIn: Putting provider and token in store
2
D/AWSMobileClient( 8356): Inspecting user state details
2
D/AWSMobileClient( 8356): hasFederatedToken: false provider: cognito-idp.us-east-1.amazonaws.com/us-east-1_iRPlAFvH1
D/AWSMobileClient( 8356): onResult: Federation from the Hosted UI succeeded
W/le.amplify_tes( 8356): Long monitor contention with owner Thread-12 (8497) at void com.amazonaws.mobile.client.AWSMobileClient.federateWithCognitoIdentity(java.lang.String, java.lang.String)(AWSMobileClient.java:1943) waiters=0 in void com.amazonaws.mobile.client.AWSMobileClient.federateWithCognitoIdentity(java.lang.String, java.lang.String) for 1.633s
D/AWSMobileClient( 8356): hasFederatedToken: true provider: cognito-idp.us-east-1.amazonaws.com/us-east-1_iRPlAFvH1
```