title: Unable to add Firebase Invites SDK
body: <p>I am trying to add the firebase invites sdk for iOS but am coming     across the errors below when trying to build. I have added each framework to my project as well as the resource files. My other firebase frameworks work fine. </p>
  
  <pre><code>Undefined symbols for architecture arm64:
    "_ABAddressBookCopyArrayOfAllPeople", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_kABPersonFirstNameProperty", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABAddressBookGetPersonCount", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_kABPersonEmailProperty", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_kABPersonPhoneProperty", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABMultiValueGetCount", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABRecordCopyValue", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABMultiValueCopyValueAtIndex", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABPersonCopyImageDataWithFormat", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABAddressBookCreateWithOptions", referenced from:
        +[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:] in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_kABPersonLastNameProperty", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABPersonHasImageData", referenced from:
        ___82+[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:]_block_invoke in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
    "_ABAddressBookRequestAccessWithCompletion", referenced from:
        +[GPPAddressBook loadDeviceContactsCoalesced:mustHaveEmail:mustHavePhone:handler:] in FirebaseInvites(GPPAddressBook_57390648818180ba012ed5ff31bf3e09.o)
  ld: symbol(s) not found for architecture arm64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>My project navigator, with the frameworks 
  <a href="https://i.stack.imgur.com/9HA8g.png" rel="nofollow noreferrer">here</a></p>
  
  <p>Thanks for the help!</p>