title: AWS Cognito: "Unauthenticated access is not supported for this identity pool."
body: <p>i am fighting with an issue <code>"Unauthenticated access is not supported for this identity pool."</code> from AWS Cognito in my Swift iOS Application. I previously used Firebase for authentication &amp; storage and have decided to migrate to AWS Mobile Hud for reasons outside the scope of this question.</p>
  
  <p>I use / have set up:</p>
  
  <ol>
  <li>Amazon Mobile Hud to provision all services</li>
  <li>AWS Cognito through Mobile Hud for Authentication / Identities</li>
  <li>Facebook as Identity Provider activated</li>
  <li>AWS DynamoDB activated in console but not yet used</li>
  <li>AWS S3 activated in console but not yet used</li>
  </ol>
  
  <p>I downloaded the sample app generated for my project and run it. </p>
  
  <blockquote>
    <p>Through the sample app, I am able to successfully register / authenticate through Facebook and Cognito. </p>
  </blockquote>
  
  <p><strong>What works?:</strong> I have integrated all SDK/Frameworks of AWS into my project and am able to build successfully (note: all AWS frameworks are integrated through cocoapods, except 'AWSMobileHubHelper' as a static framework). </p>
  
  <blockquote>
    <p>I can build the app and it opens </p>
  </blockquote>
  
  <p><strong>What does not work?:</strong> The app crashes immediately after opening up with the following crash log:</p>
  
  <pre><code>2017-02-13 15:43:49.825 dates[19823:463495] AWSiOSSDK v2.5.0 [Debug] AWSURLSessionManager.m line:566 | -[AWSURLSessionManager printHTTPHeadersForResponse:] | Response headers:
  {
      Connection = "keep-alive";
      "Content-Length" = 111;
      "Content-Type" = "application/x-amz-json-1.1";
      Date = "Mon, 13 Feb 2017 14:43:49 GMT";
      "x-amzn-ErrorMessage" = "Unauthenticated access is not supported for this identity pool.";
      "x-amzn-ErrorType" = "NotAuthorizedException:";
      "x-amzn-RequestId" = "d4f8ec82-f1fa-11e6-bd81-3727ca129d86";
  }
  2017-02-13 15:43:49.826 dates[19823:463495] AWSiOSSDK v2.5.0 [Debug] AWSURLResponseSerialization.m line:63 | -[AWSJSONResponseSerializer responseObjectForResponse:originalRequest:currentRequest:data:error:] | Response body:
  {"__type":"NotAuthorizedException","message":"Unauthenticated access is not supported for this identity pool."}
  2017-02-13 15:43:49.826 dates[19823:463495] AWSiOSSDK v2.5.0 [Error] AWSIdentityProvider.m line:309 | __52-[AWSCognitoCredentialsProviderHelper getIdentityId]_block_invoke.255 | GetId failed. Error is [Error Domain=com.amazonaws.AWSCognitoIdentityErrorDomain Code=8 "(null)" UserInfo={__type=NotAuthorizedException, message=Unauthenticated access is not supported for this identity pool.}]
  2017-02-13 15:43:49.826 dates[19823:463452] AWSiOSSDK v2.5.0 [Error] AWSCredentialsProvider.m line:565 | __44-[AWSCognitoCredentialsProvider credentials]_block_invoke.349 | Unable to refresh. Error is [Error Domain=com.amazonaws.AWSCognitoIdentityErrorDomain Code=8 "(null)" UserInfo={__type=NotAuthorizedException, message=Unauthenticated access is not supported for this identity pool.}]
  2017-02-13 15:43:49.827 dates[19823:463379] -[AWSTask exception]: unrecognized selector sent to instance 0x60800027af00
  2017-02-13 15:43:49.828 dates[19823:463379] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[AWSTask exception]: unrecognized selector sent to instance 0x60800027af00'
  *** First throw call stack:
  (
      0   CoreFoundation                      0x0000000112abcd4b __exceptionPreprocess + 171
      1   libobjc.A.dylib                     0x000000011251e21e objc_exception_throw + 48
      2   CoreFoundation                      0x0000000112b2cf04 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
      3   CoreFoundation                      0x0000000112a42005 ___forwarding___ + 1013
      4   CoreFoundation                      0x0000000112a41b88 _CF_forwarding_prep_0 + 120
      5   dates                               0x000000010ef4e917 __35-[AWSIdentityManager completeLogin]_block_invoke_2 + 263
      6   libdispatch.dylib                   0x00000001150f4978 _dispatch_call_block_and_release + 12
      7   libdispatch.dylib                   0x000000011511e0cd _dispatch_client_callout + 8
      8   libdispatch.dylib                   0x00000001150fe8a4 _dispatch_main_queue_callback_4CF + 406
      9   CoreFoundation                      0x0000000112a80e49 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
      10  CoreFoundation                      0x0000000112a4637d __CFRunLoopRun + 2205
      11  CoreFoundation                      0x0000000112a45884 CFRunLoopRunSpecific + 420
      12  GraphicsServices                    0x0000000116249a6f GSEventRunModal + 161
      13  UIKit                               0x0000000112ee0c68 UIApplicationMain + 159
      14  dates                               0x000000010edac89f main + 111
      15  libdyld.dylib                       0x000000011516a68d start + 1
      16  ???                                 0x0000000000000001 0x0 + 1
  )
  libc++abi.dylib: terminating with uncaught exception of type NSException
  </code></pre>
  
  <p><strong>What have i tried?</strong></p>
  
  <ol>
  <li>Compared my code with the sample app: Result - 1:1 match as far as I see</li>
  <li>Compared Info.plist with the sample app: Result - 1:1 match (i copied the relevant parts)</li>
  <li>Remove all frameworks, clean, rebuild</li>
  <li>Clean all simulator data (was referenced by another similar quesiton)</li>
  <li>Tried approaches from related questions: (check unauthenticated access)</li>
  </ol>
  
  <p><strong>What happens if I allow unauthenticated access?:</strong> the same, but a different response header :(</p>
  
  <pre><code>2017-02-13 16:25:06.213 dates[25642:544704] AWSiOSSDK v2.5.0 [Debug] AWSURLSessionManager.m line:566 | -[AWSURLSessionManager printHTTPHeadersForResponse:] | Response headers:
  {
      Connection = "keep-alive";
      "Content-Length" = 1612;
      "Content-Type" = "application/x-amz-json-1.1";
      Date = "Mon, 13 Feb 2017 15:25:05 GMT";
      "x-amzn-RequestId" = "98feb58d-f200-11e6-9de9-471b5799b768";
  }
  2017-02-13 16:25:06.213 dates[25642:544704] AWSiOSSDK v2.5.0 [Debug] AWSURLResponseSerialization.m line:63 | -[AWSJSONResponseSerializer responseObjectForResponse:originalRequest:currentRequest:data:error:] | Response body:
  {"Credentials":{"AccessKeyId":"ASIAISM6BUQFY6FJ4EFQ","Expiration":1.487003106E9,"SecretKey":"rlILMNjU7oeg1NEYgj1y3E1v/5L3IOJNWtZ7jsOf","SessionToken":"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"},"IdentityId":"eu-west-1:a9ef3c7f-8be8-411c-9249-48df6f04f4ac"}
  2017-02-13 16:25:06.220 dates[25642:544675] -[AWSTask exception]: unrecognized selector sent to instance 0x6180002656c0
  2017-02-13 16:25:06.222 dates[25642:544675] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[AWSTask exception]: unrecognized selector sent to instance 0x6180002656c0'
  *** First throw call stack:
  (
      0   CoreFoundation                      0x000000010ff21d4b __exceptionPreprocess + 171
      1   libobjc.A.dylib                     0x000000010f98321e objc_exception_throw + 48
      2   CoreFoundation                      0x000000010ff91f04 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
      3   CoreFoundation                      0x000000010fea7005 ___forwarding___ + 1013
      4   CoreFoundation                      0x000000010fea6b88 _CF_forwarding_prep_0 + 120
      5   dates                               0x000000010c43d917 __35-[AWSIdentityManager completeLogin]_block_invoke_2 + 263
      6   libdispatch.dylib                   0x0000000112559978 _dispatch_call_block_and_release + 12
      7   libdispatch.dylib                   0x00000001125830cd _dispatch_client_callout + 8
      8   libdispatch.dylib                   0x00000001125638a4 _dispatch_main_queue_callback_4CF + 406
      9   CoreFoundation                      0x000000010fee5e49 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
      10  CoreFoundation                      0x000000010feab37d __CFRunLoopRun + 2205
      11  CoreFoundation                      0x000000010feaa884 CFRunLoopRunSpecific + 420
      12  GraphicsServices                    0x00000001136aea6f GSEventRunModal + 161
      13  UIKit                               0x0000000110345c68 UIApplicationMain + 159
      14  dates                               0x000000010c29b89f main + 111
      15  libdyld.dylib                       0x00000001125cf68d start + 1
      16  ???                                 0x0000000000000001 0x0 + 1
  )
  libc++abi.dylib: terminating with uncaught exception of type NSException
  </code></pre>
  
  <p>The more i look at it it seems to be an issue with AWSTask. </p>
  
  <p>Any ideas where I might head next?</p>