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View Code? Open in Web Editor NEWProjects for Complete Intro to React v7 and Intermediate v4
Projects for Complete Intro to React v7 and Intermediate v4
Hello,
when I'm using "render " inside App.js I have this error,
"Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports."
I follow the same code as the course.
my App.js :
import React from 'react';
import {render} from "react-dom";
import SearchParams from "./SearchParams";
const App = () => {
return (
<div>
<h1>Adopt Me!</h1>
<SearchParams />
</div>
);
};
render(<App/>, document.getElementById("root"));
TypeError: images is undefined
Pet
src/Pet.jsx:5:6
2 | const { name, animal, breed, images, location, id } = props;
3 |
4 | let hero = "http://pets-images.dev-apis.com/pets/none.jpg";
5 | if (images.length) {
| ^ 6 | hero = images[0];
7 | }
8 |
removing
if (images.length) {
hero = images[0];
}
fixes the issue, the app gets "adopt me" images
PS C:\Users*******\Desktop\adopt-me> npx eslint src/App.js
Oops! Something went wrong! :(
ESLint: 8.8.0
Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: C:\Users*\Desktop\adopt-me\node_modules@eslint\eslintrc\universal.js
require() of ES modules is not supported.
require() of C:\Users*\Desktop\adopt-me\node_modules@eslint\eslintrc\universal.js from C:\Users*\Desktop\adopt-me\node_modules\eslint\lib\linter\linter.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename universal.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from C:\Users*\Desktop\adopt-me\node_modules@eslint\eslintrc\package.json.
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1149:13)
at Module.load (internal/modules/cjs/loader.js:977:32)
at Function.Module._load (internal/modules/cjs/loader.js:877:14)
at Module.require (internal/modules/cjs/loader.js:1019:19)
at require (C:\Users\*******\Desktop\adopt-me\node_modules\v8-compile-cache\v8-compile-cache.js:159:20)
at Object.<anonymous> (C:\Users\*******\Desktop\adopt-me\node_modules\eslint\lib\linter\linter.js:27:9)
at Module._compile (C:\Users\*******\Desktop\adopt-me\node_modules\v8-compile-cache\v8-compile-cache.js:192:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
at Module.load (internal/modules/cjs/loader.js:977:32)
at Function.Module._load (internal/modules/cjs/loader.js:877:14)
When the laptop is newer, try install a newer version of node (i.e. node 17) and then clear cache to reinstall everything.
My work laptop was newer and I was following step by step but still getting 404 Page not found until I install a newer version of node. My personal laptop was older so it worked fine without the newer version of node.
Please make image content available through HTTPS (pets-images.dev-apis.com). Text content can be accessed by both http and https, whereas images cannot. When deploying the app to gh-pages for example, you cannot view them. Hopefully it's a quick fix.
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