diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index bf6ca96f1e4e2ed7e381417df90784750ff50340..ef952b2534a434c85bbba2b2655bb5fa73ac4ddf 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -44,7 +44,7 @@ export default class EntryAbility extends UIAbility {
     }
   }
 
-  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
+  onCreate(): void {
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');
     AppStorage.setOrCreate('systemColorMode', this.context.config.colorMode);
     this.context.getApplicationContext().setColorMode(ConfigurationConstant.ColorMode.COLOR_MODE_NOT_SET);
@@ -80,9 +80,12 @@ export default class EntryAbility extends UIAbility {
           this.updateBreakpoint(windowSize.width);
         });
       } catch (error) {
-       const err = error as BusinessError;
-       hilog.error(0x000, '[EntryAbility]', `onWindowStageCreate catch err, code: ${err.code}, message:${err.message}`);
+        const err = error as BusinessError;
+        hilog.error(0x000, '[EntryAbility]',
+          `onWindowStageCreate catch err, code: ${err.code}, message:${err.message}`);
       }
+    }).catch((err: BusinessError) => {
+      hilog.error(0x0000, 'testTag', `Failed to get main window. Cause:`, err.message);
     });
     // Main window is created, set main page for this ability
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
@@ -95,14 +98,19 @@ export default class EntryAbility extends UIAbility {
         return;
       }
       hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');
-      let windowClass: window.Window = windowStage.getMainWindowSync();
-      let isLayoutFullScreen = true;
-      windowClass.setWindowLayoutFullScreen(isLayoutFullScreen).then(() => {
-        hilog.info(0x0000, 'testTag', '%{public}s', 'Succeeded in setting the window layout to full-screen mode.');
-      }).catch((err: BusinessError) => {
-        hilog.error(0x0000, 'testTag',
-          `Failed to set the window layout to full-screen mode, err code: ${err.code}, message: ${err.message}}`);
-      });
+      try {
+        let windowClass: window.Window = windowStage.getMainWindowSync();
+        let isLayoutFullScreen = true;
+        windowClass.setWindowLayoutFullScreen(isLayoutFullScreen).then(() => {
+          hilog.info(0x0000, 'testTag', '%{public}s', 'Succeeded in setting the window layout to full-screen mode.');
+        }).catch((err: BusinessError) => {
+          hilog.error(0x0000, 'testTag',
+            `Failed to set the window layout to full-screen mode, err code: ${err.code}, message: ${err.message}}`);
+        });
+      } catch (error) {
+        hilog.error(0x0000, 'testTag', '%{public}s',
+          `onWindowStageCreate failed. Cause code: ${error.code}, message: ${error.message}`);
+      }
     });
   }