diff --git a/attachment/repos/build4.bin b/attachment/repos/build4.bin
index 6094a9a9cc4c32f82ba54a64d6a0e8fd2fc8c849..c7c42c649625266e3cbfbc1f9e6507917f64a552 100644
--- a/attachment/repos/build4.bin
+++ b/attachment/repos/build4.bin
@@ -1,5 +1,5 @@
 diff --git a/build/config/BUILDCONFIG.gn b/build/config/BUILDCONFIG.gn
-index bd3476a..f1c88b9 100644
+index bd3476a..d789796 100644
 --- a/build/config/BUILDCONFIG.gn
 +++ b/build/config/BUILDCONFIG.gn
 @@ -36,7 +36,7 @@
@@ -24,18 +24,22 @@ index bd3476a..f1c88b9 100644
    }
  }
  
-@@ -261,27 +258,13 @@ if (current_os == "win") {
+@@ -257,31 +254,18 @@ if (current_os == "win") {
+   is_fuchsia_host = false
+   is_ios = true
+   is_linux = false
++  is_ohos = false
+   is_mac = false
    is_posix = true
    is_win = false
    is_wasm = false
 -} else if (current_os == "linux" && target_os == "ohos") {
 -  target_os="linux"
-+} else if (current_os == "ohos") {
-   is_android = false
-   is_chromeos = false
-   is_fuchsia = false
-   is_fuchsia_host = false
-   is_ios = false
+-  is_android = false
+-  is_chromeos = false
+-  is_fuchsia = false
+-  is_fuchsia_host = false
+-  is_ios = false
 -  is_linux = true
 -  is_ohos  = true
 -  is_mac = false
@@ -44,13 +48,22 @@ index bd3476a..f1c88b9 100644
 -  is_wasm = false
 -} else if ((current_os == "ohos" || current_os == "linux") && host_os == "mac") {
 -  target_os="linux"
--  is_android = false
--  is_chromeos = false
--  is_fuchsia = false
--  is_fuchsia_host = false
--  is_ios = false
++} else if (current_os == "ohos") {
+   is_android = false
+   is_chromeos = false
+   is_fuchsia = false
+   is_fuchsia_host = false
+   is_ios = false
 -  is_linux = true
 +  is_linux = false
    is_ohos  = true
    is_mac = false
    is_posix = true
+@@ -318,6 +302,7 @@ if (current_os == "win") {
+   is_fuchsia_host = false
+   is_ios = false
+   is_linux = false
++  is_ohos = false
+   is_mac = false
+   is_posix = false
+   is_win = false
diff --git a/shell/platform/darwin/ios/platform_message_handler_ios.mm b/shell/platform/darwin/ios/platform_message_handler_ios.mm
index cf510bc301fef2ff263da0e37c5bead5ce0d138e..a5a2b151690ac3e402d6965074417c8d1ddd1740 100644
--- a/shell/platform/darwin/ios/platform_message_handler_ios.mm
+++ b/shell/platform/darwin/ios/platform_message_handler_ios.mm
@@ -16,7 +16,7 @@ static uint64_t platform_message_counter = 1;
 @end
 
 @interface FLTSerialTaskQueue : NSObject <FlutterTaskQueue>
-@property(nonatomic, strong) dispatch_queue_t queue;
+@property(nonatomic, assign) dispatch_queue_t queue;
 @end
 
 @implementation FLTSerialTaskQueue