I am encountering an issue where I am unable to access properties of null while trying to read the 'pulsate' function within the

The current version of my material-ui library is as follows:

"@mui/icons-material": "^5.5.1",
"@mui/material": "^5.5.1",

This is how I included the Button component :

import Button from "@mui/material/Button";

Here's an example of how I am using the Button component :

<Button variant="contained"
   className={styles.contactBtn}
   autoFocus
   onClick={handleClose}
>
   Close
</Button>

An error message saying Cannot read properties of null (reading 'pulsate')https://i.sstatic.net/5iDXV.png is popping up.

I came across this thread on GitHub that was supposed to provide a solution: Link, but unfortunately, it did not resolve my issue. Can anyone help me fix this problem?

javascriptcssreactjsmaterial-ui

Answer №1

I experimented with removing each property from the button and tested its functionality.

I discovered that the autoFocus property should be either set to true or false.

The defaultValue property was not being properly set as true or false, ideally it should have a defaultValue.

<Button variant="contained"
   className={styles.contactBtn}
   onClick={handleClose}
   autoFocus={true}
>
   Close
</Button>

Answer №2

autoFocus must be assigned a value of either true or false, it cannot remain null.

Refer to the official material-ui (mui) documentation for detailed information on this issue. The solution to this problem is well explained in the mui docs.

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