From 8032f16ea58c79f54db86c982a4e5635e94bcc0f Mon Sep 17 00:00:00 2001
From: abigaleypc <abigaleypc@gmail.com>
Date: Sat, 15 Aug 2020 11:46:29 +0800
Subject: [PATCH] fix: empty layerID causes crash

---
 lottie-ios/Classes/Models/LOTLayerGroup.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lottie-ios/Classes/Models/LOTLayerGroup.m b/lottie-ios/Classes/Models/LOTLayerGroup.m
index 1d12d010f6..81d38ba532 100644
--- a/lottie-ios/Classes/Models/LOTLayerGroup.m
+++ b/lottie-ios/Classes/Models/LOTLayerGroup.m
@@ -38,7 +38,9 @@ - (void)_mapFromJSON:(NSArray *)layersJSON
                                       withAssetGroup:assetGroup
                                        withFramerate:framerate];
     [layers addObject:layer];
-    modelMap[layer.layerID] = layer;
+    if(layer.layerID) {
+      modelMap[layer.layerID] = layer;
+    }
     if (layer.referenceID) {
       referenceMap[layer.referenceID] = layer;
     }