HarmonyOS 在使用subwindow加载页面的时候，页面显示不出来

<988>SetWindowType: set window type permission denied! 
05-15 10:38:32.194   28794-28794  C03900/ACE_UI_CONTENT          com.xxx.pafe       E     <121>UICastProxyUpdateContext: handle_ is null 
05-15 10:38:32.197   28794-28794  C02C03/PARAM_WATCHER           com.xxx.pafe       E     [watcher_manager_kits.cpp:166]Failed to add callback for persist.sys.arkui.animationscale 
05-15 10:38:32.197   28794-28794  C02C03/PARAM_WATCHER           com.xxx.pafe       E     [watcher_manager_kits.cpp:344]SystemWatchParameter is failed! keyPrefix is:persist.sys.arkui.animationscale, errNum is:110 
05-15 10:38:32.197   28794-28794  C02C0B/BEGET                   com.xxx.pafe       E     [service_watcher.c:83]WatchParameter failed! the errNum is 110 
05-15 10:38:32.206   28794-28794  C03900/Ace                     com.xxx.pafe       E     [jsi_base_utils.cpp(JsLogPrint)-(100003:100003:scope)] ace Log: FIX THIS APPLICATION ERROR 
05-15 10:38:32.206   28794-28794  C03900/Ace                     com.xxx.pafe       E      @Prop (class SynchedPropertyOneWayPU) 'watermarkRes'[435] <@Component 'WatermarkView'[434]>:  Provided source object's class is not instance of SubscribableAbstract, 
05-15 10:38:32.206   28794-28794  C03900/Ace                     com.xxx.pafe       E                   it also lacks @Observed class decorator. Object property changes will not be observed. Application error! 
05-15 10:38:32.216   28794-28794  C02B05/ImageSourceNapi         com.xxx.pafe       E     RawFileDescriptor mismatch 
05-15 10:38:32.216   28794-28794  C01400/JsColorSpace            com.xxx.pafe       E     GetColorSpaceByJSObject: [NAPI]GetColorSpaceByJSObject::jsColorSpace is nullptr 
05-15 10:38:34.240   28794-28794  C02B05/ImageSourceNapi         com.xxx.pafe       E     RawFileDescriptor mismatch 
05-15 10:38:34.240   28794-28794  C01400/JsColorSpace            com.xxx.pafe       E     GetColorSpaceByJSObject: [NAPI]GetColorSpaceByJSObject::jsColorSpace is nullptr

try { 
  let windowStage:window.WindowStage = (AppStorage.get(MAIN_WINDOW_KEY) as window.WindowStage); 
  windowStage.createSubWindow(this.windowName, async (err, win) => { 
    if (err.code) { 
      console.info('create sub window error: ' + JSON.stringify(err.code)) 
    } else { 
      // API11 storage可以不用传 
      this.subWindow = win; 
      await win.loadContent(this.contentPage, new LocalStorage()); 
      win.setWindowBackgroundColor('#00000000'); 
      win.setWindowTouchable(false); 
      win.setWindowFocusable(false); 
      win.showWindow(); 
      this.isShow = true; 
    } 
  }); 
} catch (e) { 
  console.error('show watermark error: ' + JSON.stringify(e)); 
}