iOS ENAPIRequest: unexpected connectionShouldUseCredentialStorage

I'm using the sample iOS app and am getting this error: ENAPIRequest: unexpected connectionShouldUseCredentialStorage

I'm trying to retrieve songs by Gary Moore that are in the musical key of A, hence the 9 for that musical key.

Here is the key part of my code:

• (IBAction)testGETButtonAction:(id)sender {

  NSMutableDictionary *parameters = [NSMutableDictionary new]; [parameters setValue:@"api_key" forKey:@"KSLEJSLDRABIEKSND"]; [parameters setValue:@"9" forKey:@"key"]; [parameters setValue:@"gary moore" forKey:@"artist"];

  [ENAPIRequest GETWithEndpoint:@"song/search" andParameters:parameters andCompletionBlock:^(ENAPIRequest *request) { songs = [request.response valueForKeyPath:@"response.songs"]; }];

  NSLog(@"songs = %@", songs); }

Is the above code correct?

What is the meaning of the error message?

Is it okay to set my api_key here for the moment, just to test?

Thank you very much