Google Api error "Multiple methods named 'initWithArray:' found"

Question

I am using the google calendar api and I am getting two errors.

1. GTMGatherInputStream.m:25:13: Multiple methods named 'initWithArray:' found

   #import "GTMGatherInputStream.h"
   @implementation GTMGatherInputStream
   + (NSInputStream *)streamWithArray:(NSArray *)dataArray {
       return [[[self alloc] initWithArray:dataArray] autorelease]; //error on this line
   }
   

2. GTMOAuth2Authentication.h:31:11: 'GTMSessionFetcher.h' file not found

   #if GTM_USE_SESSION_FETCHER
   #import "GTMSessionFetcher.h" //GTMSessionFetcher.h file not found error
   #else
   #import "GTMHTTPFetcher.h"
   #endif  // GTM_USE_SESSION_FETCHER
   

I have researched the error everywhere online and I have found nothing. I am running GM El capitan with GM Xcode 7.0. I Have tried multiple different ways on solving it and nothing has worked. My code will not compile. How do I fix this?

Answer 1

I assume Google is going to implement a fix for this in the near future; in the meantime, we can do a couple of hacks to get around those issues:

1. change return [[[self alloc] initWithArray:dataArray] autorelease];

   to

   return [[(GTMGatherInputStream*)[self alloc] initWithArray:dataArray] autorelease];

2. change

   #ifndef GTM_USE_SESSION_FETCHER
   #define GTM_USE_SESSION_FETCHER 1
   #endif
   

   to

   #ifndef GTM_USE_SESSION_FETCHER
   #define GTM_USE_SESSION_FETCHER 0
   #endif
   

I had to do this in two places where GTM_USE_SESSION_FETCHER was defined.

One final thing, was to go to the GTL project build settings, and set Apple LLVM 7.0 warnings Deprecated Functions to NO. With these 3 steps the Calendar API compiles successfully on iOS9.