Redux-Toolkit报错：Cannot read properties of undefined (reading 'buying')

核心问题 #

你遇到的Cannot read properties of undefined (reading 'buying')错误，本质是冰淇淋操作（icecreamActions）的导入路径错误：
在Index.js中，你错误地从蛋糕切片文件（./feature/cake/cakeSlice）导入icecreamActions，但icecreamActions实际定义在冰淇淋切片文件（./feature/icecream/iceSlice.js）中。错误的导入会导致icecreamActions变量为undefined，调用其buying()方法时自然触发该报错。

修复步骤 #

1. 修正Index.js的导入语句 #

将Index.js中导入icecreamActions的代码替换为正确路径：

// 原错误代码
// const icecreamActions=require('./feature/cake/cakeSlice').icecreamActions

// 修正后的代码
const icecreamActions=require('./feature/icecream/iceSlice').icecreamActions

2. 验证其他配置（已正确，可跳过） #

• 你的store.js中已正确导入冰淇淋切片的reducer（路径../feature/icecream/iceSlice），无需修改
• 你的iceSlice.js（即提供的Iceslice.js）已正确导出icecreamActions，无需修改

修复后的完整Index.js代码 #

const store=require('./app/store')
const cakeActions=require('./feature/cake/cakeSlice').cakeActions
const icecreamActions=require('./feature/icecream/iceSlice').icecreamActions

console.log("Initial State",store.getState())
const unsubscribe=store.subscribe(()=>{
console.log('Updated State',store.getState())
})

store.dispatch(cakeActions.ordered())
store.dispatch(cakeActions.restocked(5))

store.dispatch(icecreamActions.buying())
store.dispatch(icecreamActions.restocking(7))
unsubscribe()

内容的提问来源于stack exchange，提问作者Bhavishya Tomer