Cannot read properties of null

I am getting TypeError: Cannot read properties of null (reading 'useRef') upon usage of useMotionValue, or any other function from 'framer-motion'. Here is my React component 'use client' import I digged various forums and iterated on different versions of React, reinstalled packages, checked things and libraries are the right places, I cannot make sense of this. Thanks for contributing an answer to Stack Overflow! • Please be sure to answer the question. Provide details and share your research! But avoid … • Asking for help, clarification, or responding to other answers. • Making statements based on opinion; back them up with references or personal experience. To learn more, see our

Copied! const box = document . getElementById ( 'does-not-exist' ) ; console . log (box ) ; // 👉️ null // ⛔️ Cannot read properties null (reading 'style') box . style . color = 'blue' ; id to the getElementById method Make sure that the DOM element you're accessing the style property on exists. In the example, an element with the provided id doesn't exist in the DOM, so the getElementById method returns null. Copied! Hello We placed the JS script tag before declaring the div element, so the index.js file is run before the DOM element is created. This means that the div will not be accessible in the index.js file. Copied! Hello Now the div element is available in the index.js file. Copied! const box = document . getElementById ( 'box' ) ; console . log (box ) ; // 👉️ the div element // ✅ works box . style . color = 'blue' ; HTML code is parsed from top to bottom, so the script tag has to be placed at the bottom of the body tag, after all of the DOM elements it needs to access. There are 2 main reasons the "Cannot read properties of undefined (reading 'style')" error occurs: • Accessing the style property on a DOM element that doesn't exist, e.g. array index out of bounds. • Inserting the JS script tag above the HTML, where the DOM elements are declared. Here is an example of how the error occurs. Copied! const arr = [ ] ; // ⛔️ Uncaught TypeError: Cannot read properties of undefined (reading 'style') console . log (arr [ 0 ] . style ) We accessed an ...

I am new to SPFx with react. I am creating a webpart to include a dropdown to have options from a choice column of a sharepoint online list. When loaded the dropdown from a static option values it works fine, however when loaded from a choice field from SPList which is set to state variable it gives the error message as requestTypeOptions is the only property in state. Below are the code files DemoFormBaseWebpart.ts export default class DemoFormWebpartWebPart extends BaseClientSideWebPart Noticed that options are loaded in the state variable, however render method is executed before loading of state variable. Not sure what is happening. Please help me on this. Thank you. Below is package.json The issue is in your component's constructor. Instead of using setState you will want to just set the state variable. So changing your constructor to the following should correct the error: constructor( props: IDemoFormWebpartProps, state: IDemoFormWebpartState ) Thanks for contributing an answer to SharePoint Stack Exchange! • Please be sure to answer the question. Provide details and share your research! But avoid … • Asking for help, clarification, or responding to other answers. • Making statements based on opinion; back them up with references or personal experience. To learn more, see our

$ npm link react npm ERR! Cannot read properties of null (reading 'matches') npm ERR! A complete log of this run can be found in: npm ERR! /home/ploppz/.npm/_logs/2022-02-03T11_48_09_016Z-debug-0.log And no link happens. The log: Expected Behavior No error, and symbolic link created in node_modules with name react Steps To Reproduce I have npm installed from official Arch repo. I have an app called ui. I went into its node_modules/react after npm i and ran sudo npm link. As such, a symbolic link was created called /usr/lib/node_modules/react which points to this directory: $ ls -l /usr/lib/node_modules lrwxrwxrwx 1 root root 49 Jan 31 14:30 react -> ../../../home/ploppz/ui/node_modules/react/ (rest redacted) I have a shared library called components in which I need to link to this react installation, so I run npm link react in there and get the above problem. npm link react worked fine yesterday with the same setup, and it still work perfectly fine in a second application I'm developing with the same components library... It's just in the components library itself it won't work. Note that also the components library itself is linked with sudo npm link Environment • npm: 8.3.2 • Node.js: 17.3.0 • OS Name: Arch Linux • System Model Name: ? • npm config: [email protected] /home/ploppz/admin-ui ├─┬ [email protected] -> ./../components │ ├── [email protected] -> ./../ui/node_modules/react │ └─┬ [email protected] │ ├─┬ [email protected] │ │ └── [email protected] deduped -> ./../ui/node_m...

To fix the “Uncaught TypeError: Cannot read property ‘value’ of null” error in JavaScript, you must “identify why the DOM element is null” and take appropriate action. First, you must ensure that the object is initialized and the property exists. You can do this by checking the value of the object and the property before you try to access it. The error message “Uncaught TypeError: Cannot read property ‘value’ of null” means that you are trying to access a property of a null object. This can happen for a few reasons: • First, the object may not have been initialized. • Second, the object may have been deleted. • Third, the property may not exist. • The script is executed before the DOM has finished loading. To fix this, ensure your script is placed at the end of the HTML body or wrapped inside a function that listens for the DOMContentLoaded event. document.addEventListener('DOMContentLoaded', function () ); • The DOM element’s selector is incorrect, or the element does not exist in the HTML. Double-check your selector to make sure it’s targeting the correct element. Also, ensure that the element exists in your HTML code. • After the initial page load, the DOM element may be removed or replaced dynamically. In this case, you should ensure the element is present when accessing its properties. To fix the error, you can check if the element exists before accessing its properties: const element = document.getElementById('yourElementId'); if (element) The above code snippet fir...

• News • • Get WordPress • Themes • Patterns • Plugins • Mobile • Hosting • Openverse ↗︎ • • Learn WordPress • Documentation • Forums • Developers • WordPress.tv ↗︎ • • Make WordPress • Photo Directory • Five for the Future • WordCamp ↗︎ • Meetups ↗︎ • Job Board ↗︎ • • About WordPress • Showcase • Enterprise • Gutenberg ↗︎ • WordPress Swag Store ↗︎ • Get WordPress Hi, when the plugin is activated im getting the following warning in my console and a lot of other plugins which are using ajax to save settings do not work anymore. Deactivating your plugin fixes the issue. Any idea whats happening? Im using PHP 8.2: Uncaught TypeError: Cannot read properties of null (reading ‘addEventListener’)… .addEventListener(‘click’, async function (event) { event.preventDefault(); var node = document.querySelector(‘#wp-admin-bar-redis-cache’); var textNode = node.querySelector(‘.ab-item:first-child’); node.classList.remove(‘hover’); textNode.innerText = ‘Flushing cache… • This topic was modified 4 days, 13 hours ago by evalast.