模拟器运行代码是空白

  onWindowStageCreate(windowStage: window.WindowStage): void {

    // Main window is created, set main page for this ability
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');

    windowStage.loadContent('pages/Calculator', (err) => {
      if (err.code) {
        hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
        return;
      }
      hilog.info(0x0000, 'testTag', 'Succeeded in loading the content.');

    });
  }

onWindowStageCreate(windowStage: window.WindowStage) {
        // Main window is created, set main page for this ability
        hilog.info(0x0000, 'testTag', '%{public}s', ' continue Ability onWindowStageCreate');

        //这里填写要加载的页面
        windowStage.loadContent("pages/Calculate", (err, data) => {
            if (err.code) {
                hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s',
                    JSON.stringify(err) ?? '');
                return;
            }
            hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s',
                JSON.stringify(data) ?? '');
        });

    }