To add an instance to the application, drag this component to the right of the two existing browser container components on the application panel.

要向应用程序添加一个实例，将该组件拖拽到应用程序面板上两个现有浏览器容器组件的右侧。

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We will add the error message to the button component, enabling us to drag an error component later and associate it with the button component.

我们将在按钮组件中添加错误消息，这允许我们在以后拖放错误组件并将它与按钮组件相关联。

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We need to drag this component onto the page.

我们需要将该组件拖到页面中。

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