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"React-Native AsyncStorage：TypeError：无法读取未定义的属性“setItem”"

[英]React-Native AsyncStorage: TypeError: Cannot read property 'setItem' of undefined

 原文  2018-12-18 08:43:30  1   5    javascript/ react-native/ asyncstorage

问题描述

I'm learning react-native and trying to use AsyncStorage<\/code> .我正在学习 react-native 并尝试使用AsyncStorage<\/code> 。 I'm using this code to store the data:我正在使用此代码来存储数据：

_storeData = async (token) => {
    console.log("store token");
    console.log(token);
    try {
      await AsyncStorage.setItem('token', token);
    } catch (error) {
      // Error saving data
      console.log(error);
    }
  }

5 个解决方案

解决方案1
 3 已采纳  2018-12-18 08:49:24

I'm learning react-native and trying to use AsyncStorage .我正在学习react-native并尝试使用AsyncStorage 。 I'm using this code to store the data:我正在使用以下代码来存储数据：

_storeData = async (token) => {
    console.log("store token");
    console.log(token);
    try {
      await AsyncStorage.setItem('token', token);
    } catch (error) {
      // Error saving data
      console.log(error);
    }
  }

Calling it with: this._storeData(res.token);调用它： this._storeData(res.token);

But it is giving me this error:但这给了我这个错误：

> TypeError: Cannot read property 'setItem' of undefined
>     at LoginOrCreateForm._callee$ (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:138096:71)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at Generator.invoke [as _invoke] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21583:24)
>     at Generator.prototype.(anonymous function) [as next] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21451:23)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at invoke (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21484:22)
>     at blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21514:13
>     at tryCallTwo (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22690:7)
>     at doResolve (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22854:15)
>     at new Promise (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22713:5)

Could anyone help with what I am doing wrong?有人可以帮我解决我做错的事情吗？ Thanks谢谢

解决方案2
 2  2018-12-18 08:54:59

I'm learning react-native and trying to use AsyncStorage .我正在学习react-native并尝试使用AsyncStorage 。 I'm using this code to store the data:我正在使用以下代码来存储数据：

_storeData = async (token) => {
    console.log("store token");
    console.log(token);
    try {
      await AsyncStorage.setItem('token', token);
    } catch (error) {
      // Error saving data
      console.log(error);
    }
  }

Calling it with: this._storeData(res.token);调用它： this._storeData(res.token);

But it is giving me this error:但这给了我这个错误：

> TypeError: Cannot read property 'setItem' of undefined
>     at LoginOrCreateForm._callee$ (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:138096:71)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at Generator.invoke [as _invoke] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21583:24)
>     at Generator.prototype.(anonymous function) [as next] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21451:23)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at invoke (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21484:22)
>     at blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21514:13
>     at tryCallTwo (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22690:7)
>     at doResolve (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22854:15)
>     at new Promise (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22713:5)

Could anyone help with what I am doing wrong?有人可以帮我解决我做错的事情吗？ Thanks谢谢

解决方案3
 1  2022-02-04 06:32:01

I was facing the same problem.我面临着同样的问题。

if you are using如果你正在使用

React Native 0.60+<\/code>

then follow https:\/\/react-native-async-storage.github.io\/async-storage\/docs\/install\/<\/a> to install AsyncStorage in your project.然后按照https:\/\/react-native-async-storage.github.io\/async-storage\/docs\/install\/<\/a>在您的项目中安装 AsyncStorage。

"@react-native-async-storage\/async-storage": "^1.15.17"<\/code>

After installation and linking were done, import this to your project:安装和链接完成后，将其导入您的项目：

import AsyncStorage from '@react-native-async-storage/async-storage';

解决方案4
 0  2020-10-01 16:54:46

I'm learning react-native and trying to use AsyncStorage .我正在学习react-native并尝试使用AsyncStorage 。 I'm using this code to store the data:我正在使用以下代码来存储数据：

_storeData = async (token) => {
    console.log("store token");
    console.log(token);
    try {
      await AsyncStorage.setItem('token', token);
    } catch (error) {
      // Error saving data
      console.log(error);
    }
  }

Calling it with: this._storeData(res.token);调用它： this._storeData(res.token);

But it is giving me this error:但这给了我这个错误：

> TypeError: Cannot read property 'setItem' of undefined
>     at LoginOrCreateForm._callee$ (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:138096:71)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at Generator.invoke [as _invoke] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21583:24)
>     at Generator.prototype.(anonymous function) [as next] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21451:23)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at invoke (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21484:22)
>     at blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21514:13
>     at tryCallTwo (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22690:7)
>     at doResolve (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22854:15)
>     at new Promise (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22713:5)

Could anyone help with what I am doing wrong?有人可以帮我解决我做错的事情吗？ Thanks谢谢

解决方案5
 0  2020-12-29 04:36:35

I'm learning react-native and trying to use AsyncStorage .我正在学习react-native并尝试使用AsyncStorage 。 I'm using this code to store the data:我正在使用以下代码来存储数据：

_storeData = async (token) => {
    console.log("store token");
    console.log(token);
    try {
      await AsyncStorage.setItem('token', token);
    } catch (error) {
      // Error saving data
      console.log(error);
    }
  }

Calling it with: this._storeData(res.token);调用它： this._storeData(res.token);

But it is giving me this error:但这给了我这个错误：

> TypeError: Cannot read property 'setItem' of undefined
>     at LoginOrCreateForm._callee$ (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:138096:71)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at Generator.invoke [as _invoke] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21583:24)
>     at Generator.prototype.(anonymous function) [as next] (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21451:23)
>     at tryCatch (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21408:19)
>     at invoke (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21484:22)
>     at blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:21514:13
>     at tryCallTwo (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22690:7)
>     at doResolve (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22854:15)
>     at new Promise (blob:http://localhost:8081/21ec2746-a3c9-4c68-937f-ee50c63a6d58:22713:5)

Could anyone help with what I am doing wrong?有人可以帮我解决我做错的事情吗？ Thanks谢谢

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