diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e09fc99..96a86aa3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 ## NEXT
 
-## 4.0.0 Easemob IM Flutter 端发版说明
+## 4.0.0+1
+
+#### 修复
+
+- 修复图片消息和视频消息转换失败的问题。
+
+## 4.0.0
 
 #### 新增特性
 
diff --git a/ios/Classes/EMChatManagerWrapper.m b/ios/Classes/EMChatManagerWrapper.m
index eb57c359..7cba5e78 100644
--- a/ios/Classes/EMChatManagerWrapper.m
+++ b/ios/Classes/EMChatManagerWrapper.m
@@ -637,7 +637,7 @@ - (void)fetchGroupReadAck:(NSDictionary *)param
             break;
         }
         e = nil;
-    } while (false);
+    } while (NO);
     if (e != nil) {
         [weakSelf wrapperCallBack:result
                       channelName:aChannelName
diff --git a/ios/Classes/EMChatMessage+Helper.m b/ios/Classes/EMChatMessage+Helper.m
index ce093339..5cef7b35 100644
--- a/ios/Classes/EMChatMessage+Helper.m
+++ b/ios/Classes/EMChatMessage+Helper.m
@@ -507,7 +507,7 @@ - (NSDictionary *)toJson {
     ret[@"secret"] = self.secretKey;
     ret[@"displayName"] = self.displayName;
     ret[@"localPath"] = self.localPath;
-    ret[@"sendOriginalImage"] = self.compressionRatio == 1.0 ? @(true) : @(false);
+    ret[@"sendOriginalImage"] = self.compressionRatio == 1.0 ? @(YES) : @(NO);
     return ret;
 }
 @end
diff --git a/ios/Classes/EMGroup+Helper.m b/ios/Classes/EMGroup+Helper.m
index 6b539057..2f7477d3 100644
--- a/ios/Classes/EMGroup+Helper.m
+++ b/ios/Classes/EMGroup+Helper.m
@@ -44,7 +44,7 @@ - (BOOL)isMemberOnly {
     if (self.settings.style == EMGroupStylePrivateOnlyOwnerInvite ||
         self.settings.style == EMGroupStylePrivateMemberCanInvite ||
         self.settings.style == EMGroupStylePublicJoinNeedApproval) {
-        return true;
+        return YES;
     }
 
     return NO;
diff --git a/lib/src/models/em_message.dart b/lib/src/models/em_message.dart
index 9ee0fca1..7a67de8c 100644
--- a/lib/src/models/em_message.dart
+++ b/lib/src/models/em_message.dart
@@ -710,8 +710,8 @@ class EMLocationMessageBody extends EMMessageBody {
   /// @nodoc
   EMLocationMessageBody.fromJson({required Map map})
       : super.fromJson(map: map, type: MessageType.LOCATION) {
-    this.latitude = map["latitude"] ?? 0.0;
-    this.longitude = map["longitude"] ?? 0.0;
+    this.latitude = (map["latitude"] ?? 0).toDouble();
+    this.longitude = (map["longitude"] ?? 0).toDouble();
     this._address = map["address"];
     this._buildingName = map["buildingName"];
   }
@@ -865,8 +865,8 @@ class EMImageMessageBody extends EMFileMessageBody {
     this.thumbnailRemotePath = map["thumbnailRemotePath"];
     this.thumbnailSecret = map["thumbnailSecret"];
     this.sendOriginalImage = map["sendOriginalImage"] ?? false;
-    this.height = map["height"];
-    this.width = map["width"];
+    this.height = (map["height"] ?? 0).toDouble();
+    this.width = (map["width"] ?? 0).toDouble();
     this.thumbnailStatus =
         EMFileMessageBody.downloadStatusFromInt(map["thumbnailStatus"]);
   }
@@ -879,8 +879,8 @@ class EMImageMessageBody extends EMFileMessageBody {
     data.add("thumbnailRemotePath", thumbnailRemotePath);
     data.add("thumbnailSecret", thumbnailSecret);
     data.add("sendOriginalImage", sendOriginalImage);
-    data.add("height", height);
-    data.add("width", width);
+    data.add("height", height ?? 0.0);
+    data.add("width", width ?? 0.0);
     data.add("thumbnailStatus", downloadStatusToInt(this.thumbnailStatus));
     return data;
   }
@@ -1008,8 +1008,8 @@ class EMVideoMessageBody extends EMFileMessageBody {
     this.thumbnailLocalPath = map["thumbnailLocalPath"];
     this.thumbnailRemotePath = map["thumbnailRemotePath"];
     this.thumbnailSecret = map["thumbnailSecret"];
-    this.height = map["height"];
-    this.width = map["width"];
+    this.height = (map["height"] ?? 0).toDouble();
+    this.width = (map["width"] ?? 0).toDouble();
     this.thumbnailStatus =
         EMFileMessageBody.downloadStatusFromInt(map["thumbnailStatus"]);
   }
@@ -1022,8 +1022,8 @@ class EMVideoMessageBody extends EMFileMessageBody {
     data.add("thumbnailLocalPath", thumbnailLocalPath);
     data.add("thumbnailRemotePath", thumbnailRemotePath);
     data.add("thumbnailSecret", thumbnailSecret);
-    data.add("height", height);
-    data.add("width", width);
+    data.add("height", height ?? 0.0);
+    data.add("width", width ?? 0.0);
     data.add("thumbnailStatus", downloadStatusToInt(this.thumbnailStatus));
 
     return data;
diff --git a/pubspec.yaml b/pubspec.yaml
index cba89bc1..559a95fe 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: im_flutter_sdk
 description: Integrate the Chat SDK to enjoy the global IM services with high reliability, ultra-low latency, and high concurrency.
-version: 4.0.0
+version: 4.0.0+1
 homepage: https://www.easemob.com/product/im
 
 environment: