Twitter Login failed

[leverdeterre]

Welcome to FirebaseUI and thanks for submitting an issue!

If not, please feel free to fill in the following info so we can help faster!

Step 2: Describe your environment

• Objective C or Swift: Swift
• iOS version: 12
• Firebase SDK version: 5.14.0
• FirebaseUI version: 6.1.0
• CocoaPods Version: 1.6

Step 3: Describe the problem:

Failed to login with Twitter Login

Steps to reproduce:

1. Use TwitterAuth provider
2. Try to login
3. Login failed

Observed Results:

• User account is not created in Firebase Authentication
• Log failed because of - some : Error Domain=FIRAuthErrorDomain Code=17004 "Failed to fetch resource from https://api.twitter.com/1.1/account/verify_credentials.json?include_email=true, http status: 401, http response: {"errors":[{"code":32,"message":"Could not authenticate you."}]}" UserInfo={NSLocalizedDescription=Failed to fetch resource from https://api.twitter.com/1.1/account/verify_credentials.json?include_email=true, http status: 401, http response: {"errors":[{"code":32,"message":"Could not authenticate you."}]}, error_name=ERROR_INVALID_CREDENTIAL}
• [FIRAuthBackend verifyAssertion:request
  callback:^(FIRVerifyAssertionResponse *response, NSError *error) return an error

Expected Results:

• Account creation, with or without email

Relevant Code:

[FIRAuthBackend verifyAssertion:request
                       callback:^(FIRVerifyAssertionResponse *response, NSError *error) return an error failed 

[leverdeterre]

This issue is only available is we configure the App on Twitter Settings to request the user email

[morganchen12]

TwitterKit has been deprecated. For Twitter Auth, you should be using the FirebaseOAuthUI library instead.