You must pass a selector to useselector

The error message you encountered, “you must pass a selector to useselector,” usually occurs when you are using the `useselector` function in incorrect syntax. `useselector` is a function used in React or React Native with the `useEffect` hook to retrieve data from a specific selector.

To fix this issue, you need to ensure that you are passing a valid selector as an argument to the `useselector` function.

Example:

    
      import React, { useEffect } from 'react';
      import { useDispatch, useselector } from 'react-redux';

      function ComponentName() {
        const dispatch = useDispatch();
        const data = useselector(state => state.data); // Here, 'state' is the selector
      
        useEffect(() => {
          dispatch(yourAction());
        }, [dispatch]);

        // ...
      }

      export default ComponentName;
    
  

In the above example, the `useselector` function is used to retrieve the `data` from the Redux state by passing `state => state.data` as the selector. This selector is a function that returns the desired data from the global state.

Make sure you replace the `yourAction()` and `state.data` with the appropriate action and selector for your specific use case.

By following this example and providing a valid selector to the `useselector` function, you should be able to resolve the “you must pass a selector to useselector” error.