升级到 NextJS 9.0 后如何修复 React Hooks?

How to fix React Hooks after upgrade to NextJS 9.0?

将 nextjs 更新到 9.0.0 后,此问题在构建过程中发生。 nex^8.1.0 → ^9.0.0
在页面组件中,我使用的是我之前设置的全局商店。

const { state, dispatch } = React.useContext(React.createContext())

错误信息是
TypeError: Cannot read property 'state' of undefined, > Build error occurred

原来我必须为 React.createContext() 提供默认值 我有初始值,但我将它们传递给 Store.Provider

export function StoreProvider(props) {
  const [state, dispatch] = React.useReducer(reducer, initialState);
  const value = { state, dispatch };
  return <Store.Provider value={value}>{props.children}</Store.Provider>}

我只需要将 initialState 添加到 createContext()

export const Store = React.createContext({ state: initialState })