diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index 0da01c684f39efe375cf9d8366b042154af4b7e0..595a7437cb5ce47ffe4883bfdded99d79abbfd3a 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -67,12 +67,12 @@ export default class EntryAbility extends UIAbility {
     // Main window is created, set main page for this ability
     hilog.info(0x0000, TAG, '%{public}s', 'Ability onWindowStageCreate');
     windowStage.getMainWindow().then((windowObj: window.Window) => {
-      let type: window.AvoidAreaType = window.AvoidAreaType.TYPE_NAVIGATION_INDICATOR;
-      let avoidArea: window.AvoidArea = windowObj.getWindowAvoidArea(type);
-      let bottomRectHeight: number = avoidArea.bottomRect.height;
-      AppStorage.setOrCreate('bottomRectHeight', bottomRectHeight);
-      this.updateBreakpoint(windowObj.getWindowProperties().windowRect.width);
       try {
+        let type: window.AvoidAreaType = window.AvoidAreaType.TYPE_NAVIGATION_INDICATOR;
+        let avoidArea: window.AvoidArea = windowObj.getWindowAvoidArea(type);
+        let bottomRectHeight: number = avoidArea.bottomRect.height;
+        AppStorage.setOrCreate('bottomRectHeight', bottomRectHeight);
+        this.updateBreakpoint(windowObj.getWindowProperties().windowRect.width);
         windowObj.on('windowSizeChange', (windowSize) => {
           this.updateBreakpoint(windowSize.width);
         });
@@ -92,7 +92,9 @@ export default class EntryAbility extends UIAbility {
         hilog.error(0x0000, TAG, '%{public}s',
           `onWindowStageCreate failed. Cause code: ${error.code}, message: ${error.message}`);
       }
-    })
+    }).catch((err: BusinessError) => {
+      hilog.error(0x0000, TAG, `Failed to get main window. Cause:`, err.message);
+    });
   }
 
   onWindowStageDestroy(): void {