Why you get "Router may have only one child element" warning?

Because you have more than one component
Because you have more than one child component inside the
Because you have multiple routes with the same path
Because you have nested components without a parent

In React Router v4, you can get the "Router may have only one child element" warning if you have nested components without a parent . This is because the component renders the first matching child and prevents multiple routes from rendering at the same time. To fix the warning, wrap your components inside a component.

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