Storage api- Cannot retrieve data

Hello, I’m trying to use the Storage API to store the information described in my code, but I keep getting this error.
Trace ID: b76e84ef40caf33d
There was an error invoking the function - Cannot read property ‘useState’ of null

TypeError: Cannot read property ‘useState’ of null
at exports.useState (index.js:36002:423)
at Object.App [as type] (index.js:39704:94)
at index.js:33781:36
at asyncMap (index.js:33716:30)
at index.js:33737:35
at Object.exports.processAuxElement (index.js:33818:49)
at index.js:33262:49
at Reference.value (bootstrap.js:1:9280)
Here is my code.

import { storage } from '@forge/api';
import ForgeUI, { render, Text, GlobalSettings } from '@forge/ui';
import { useState, useEffect } from 'react';

const App = () => {
  const [retrievedItems, setRetrievedItems] = useState('');

  const createData = async () => {
    const item = {
      key: 'salut',
      value: 'Bonjour',

    await storage.set(item.key, item.value);
    return [item];

  const getData = async () => {
    await createData();
    const value = await storage.get('salut');

    if (value) {

  useEffect(() => {
  }, []);

  return <Text>{retrievedItems}</Text>;

export const run = render(
    <App />

would you please help me ?


Hi @Mariem ,

Welcome to the Atlassian Developer Community.

Forge UI Kit is like React, but not the same. Please import useSate and useEffect from @forge/ui. i.e.

import { useState, useEffect } from '@forge/ui';



Thanks @dmorrow .

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