fix target compatibility

Author: hermanliang

Parse/Internal/LocalDataStore/OfflineStore/PFOfflineStore.m

@@ -28,6 +28,7 @@
 #import "PFUser.h"
 #import "PFWeakValue.h"
 #import "Parse_Private.h"
+#import "PFInstallation.h"
 
 typedef BFTask * (^PFOfflineStoreDatabaseExecutionBlock)(PFSQLiteDatabase *database);
 
@@ -1000,13 +1001,17 @@ - (void)updateObjectIdForObject:(PFObject *)object
                     oldObjectId:(NSString *)oldObjectId
                     newObjectId:(NSString *)newObjectId {
     if (oldObjectId != nil) {
+#if TARGET_OS_IOS
         if ([object isKindOfClass:[PFInstallation class]]
             && newObjectId == nil) {
             NSString *key = [self _generateKeyForClassName:object.parseClassName objectId:oldObjectId];
             [self.classNameAndObjectIdToObjectMap removeObjectForKey:key];
         } else {
             PFConsistencyAssert([oldObjectId isEqualToString:newObjectId], @"objectIds cannot be changed in offline mode.");
         }
+#else
+      PFConsistencyAssert([oldObjectId isEqualToString:newObjectId], @"objectIds cannot be changed in offline mode.");
+#endif
         return;
     }