update Xcode project

src/canvas_layer.cpp

@@ -366,12 +366,16 @@ LayerFrame& LayerFrame::operator=(LayerFrame&& other)
 
 bool LayerFrame::create(int width, int height, int duration /*= 1*/)
 {
+    bool success = true;
     App::I->render_task([&]
     {
         for (int i = 0; i < 6; i++)
         {
             if (!m_rtt[i].create(width, height))
-                return false;
+            {
+                success = false;
+                return;
+            }
             m_rtt[i].bindFramebuffer();
             m_rtt[i].clear();
             m_rtt[i].unbindFramebuffer();
@@ -382,7 +386,7 @@ bool LayerFrame::create(int width, int height, int duration /*= 1*/)
     m_duration = duration;
     w = width;
     h = height;
-    return true;
+    return success;
 }
 
 bool LayerFrame::resize(int width, int height)