1. 報錯資訊
./src/models/example.jsModule build failed: TypeError: /Users/user/Desktop/learn-code/10.React/01_dva-came/src/models/example.js: path.isPrivate is not a function at Array.forEach (
)
只要啟動專案,然後修改example程式碼,只要example發生改變就會報該錯誤,無論是新增註釋還是產生新的換行
2.原始程式碼
// example.js
import { routerRedux } from "dva/router";
// routerRedux == connected-react-redux
function delay(ms) {
return new Promise((resolve) => {
setTimeout(() => {
resolve();
}, ms);
});
}
export default {
namespace: "counter",
state: {
count: 1,
},
//ddd
subscriptions: {
setup({ dispatch, history }) {
// eslint-disable-line
},
},
effects: {
*asyncAdd(action, { put, call }) {
yield call(delay, 1000);
yield put({ type: "counter/add" });
},
*goto({ payload }, { put }) {
yield put(routerRedux.push(payload));
},
},
reducers: {
add(state, action) {
console.log("state", state);
return {
count: state.count + 1,
};
},
},
};
// index.js
import dva, { connect } from "dva";
import { Router, Route } from "dva/router";
import React from "react";
import "./index.css";
console.log("Router", Route);
// 1. Initialize
const app = dva();
// 2. Plugins
// app.use({});
// 3. Model
app.model(require("./models/example").default);
// 4. Router
// app.router(require("./router").default);
let Counter = connect((state) => state.counter)((props) => {
let { count, dispatch } = props;
console.log("count", props);
return (
<div>
<p>{count}</p>
<button
onClick={() =>
dispatch({
type: "counter/add",
})
}
>
+
</button>
<button onClick={() => dispatch({ type: "counter/asyncAdd" })}>
async +
</button>
<button onClick={() => dispatch({ type: "counter/goto", payload: "/" })}>
goto /
</button>
</div>
);
});
const Home = (props) => <div>home</div>;
app.router(({ history }) => (
<Router history={history}>
{/* Router 下面只能有一個元素 */}
<React.Fragment>
<Route path="/" exact component={Home} />
<Route path="/counter" component={Counter} />
</React.Fragment>
</Router>
));
// 5. Start
app.start("#root");
3.最終查詢原因
- 並沒有找到具體是因為什麼,猜測原因是使用了yarn 重新安裝依賴導致
- 如果重新使用npm 安裝依賴則恢復正常
++++++++++++++++++++++++++++++++++++++++++++++
經過測試發現,使用dva腳手架生成的專案如果後期使用了yarn安裝依賴,就會導致出現該錯誤