{"id":4752,"date":"2025-06-01T14:07:35","date_gmt":"2025-06-04T06:12:34","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4752"},"modified":"2025-06-04T14:07:35","modified_gmt":"2025-06-04T06:12:34","slug":"%e8%a7%a3%e6%b1%bareact-jserrorinvariantviolationelementtypeisinvalid%e7%9a%84%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e8%a7%a3%e6%b1%bareact-jserrorinvariantviolationelementtypeisinvalid%e7%9a%84%e6%8a%80%e5%b7%a7\/","title":{"rendered":"\u89e3\u6c7a React.js “Invariant Violation: Element Type is Invalid” \u932f\u8aa4\u7684\u7d42\u6975\u6307\u5357"},"content":{"rendered":"

<\/p>\n

React.js \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684 JavaScript \u5eab\uff0c\u5c08\u70ba\u69cb\u5efa\u7528\u6236\u754c\u9762\u800c\u8a2d\u8a08\u3002\u96d6\u7136\u5b83\u4f7f\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5275\u5efa\u9ad8\u6548\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5e8f\uff0c\u4f46\u6709\u6642\u5019\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e00\u500b\u6700\u5e38\u898b\u7684\u5c31\u662f\uff1a\u201cError: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class\/function (for composite components) but got: undefined.\u201d \u9019\u500b\u932f\u8aa4\u63d0\u793a\u6211\u5011\uff0cReact.js \u7121\u6cd5\u8b58\u5225\u67d0\u500b\u5143\u7d20\u7684\u985e\u578b\uff0c\u56e0\u6b64\u7121\u6cd5\u6b63\u78ba\u6e32\u67d3\u5b83\u3002<\/p>\n

\u5728\u89e3\u6c7a\u9019\u500b\u554f\u984c\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u4e86\u89e3 React.js \u4e2d\u7684\u5169\u7a2e\u985e\u578b\u7684\u5143\u7d20\uff1a\u5167\u7f6e\u7d44\u4ef6\u548c\u5fa9\u5408\u7d44\u4ef6\u3002\u5167\u7f6e\u7d44\u4ef6\u662f React.js \u6240\u63d0\u4f9b\u7684\u7d44\u4ef6\uff0c\u4f8b\u5982 `<\/p>\n

`\u3001`` \u7b49\uff0c\u9019\u4e9b\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u800c\u4e0d\u9700\u984d\u5916\u5b9a\u7fa9\u3002\u5fa9\u5408\u7d44\u4ef6\u5247\u662f\u958b\u767c\u8005\u81ea\u5b9a\u7fa9\u7684\u7d44\u4ef6\uff0c\u9019\u4e9b\u7d44\u4ef6\u53ef\u4ee5\u5305\u542b\u591a\u500b\u5167\u7f6e\u7d44\u4ef6\uff0c\u4e26\u5728\u61c9\u7528\u4e2d\u91cd\u8907\u4f7f\u7528\u3002<\/p>\n

\u7576\u60a8\u9047\u5230\u932f\u8aa4\uff1a\u201cError: Invariant Violation: Element type is invalid\u201d \u6642\uff0c\u9019\u901a\u5e38\u610f\u5473\u8457\u60a8\u6b63\u5728\u4f7f\u7528\u4e00\u500b\u672a\u5b9a\u7fa9\u7684\u5143\u7d20\u3002React.js \u7121\u6cd5\u8b58\u5225\u5b83\u7684\u985e\u578b\uff0c\u5c0e\u81f4\u7121\u6cd5\u6e32\u67d3\u3002<\/p>\n

### \u5982\u4f55\u89e3\u6c7a\u6b64\u554f\u984c\uff1f<\/p>\n

\u8981\u89e3\u6c7a\u9019\u4e00\u932f\u8aa4\uff0c\u60a8\u61c9\u8a72\u78ba\u8a8d\u60a8\u4f7f\u7528\u7684\u5143\u7d20\u985e\u578b\u662f\u5426\u6b63\u78ba\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u6aa2\u67e5\u6b65\u9a5f\uff1a<\/p>\n

1. **\u78ba\u8a8d\u5167\u7f6e\u7d44\u4ef6**\uff1a\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u5167\u7f6e\u7d44\u4ef6\uff0c\u8acb\u78ba\u4fdd\u5143\u7d20\u985e\u578b\u662f\u6b63\u78ba\u7684\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff1a<\/p>\n

“`javascript
\n render() {
\n return (<\/p>\n

\n Hello World!\n <\/div>\n

);
\n }
\n “`<\/p>\n

2. **\u78ba\u8a8d\u5fa9\u5408\u7d44\u4ef6**\uff1a\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u5fa9\u5408\u7d44\u4ef6\uff0c\u8acb\u78ba\u4fdd\u7d44\u4ef6\u5df2\u6b63\u78ba\u5b9a\u7fa9\u4e26\u5c0e\u51fa\u3002\u4f8b\u5982\uff1a<\/p>\n

“`javascript
\n class MyComponent extends React.Component {
\n render() {
\n return (<\/p>\n

\n Hello World!\n <\/div>\n

);
\n }
\n }
\n export default MyComponent;
\n “`<\/p>\n

3. **\u6aa2\u67e5\u5c0e\u5165**\uff1a\u78ba\u4fdd\u60a8\u5df2\u6b63\u78ba\u5c0e\u5165\u6240\u6709\u9700\u8981\u7684\u7d44\u4ef6\u3002\u5982\u679c\u5fd8\u8a18\u5c0e\u5165\uff0cReact.js \u6703\u5831\u544a\u672a\u5b9a\u7fa9\u7684\u932f\u8aa4\u3002<\/p>\n

4. **\u6aa2\u67e5\u62fc\u5beb**\uff1a\u78ba\u8a8d\u7d44\u4ef6\u540d\u7a31\u53ca\u5176\u5f15\u7528\u6c92\u6709\u62fc\u5beb\u932f\u8aa4\uff0c\u9019\u4e5f\u662f\u5e38\u898b\u7684\u932f\u8aa4\u4f86\u6e90\u3002<\/p>\n

### \u7d50\u8a9e<\/p>\n

\u7e3d\u7d50\u4f86\u8aaa\uff0c\u7576\u60a8\u9047\u5230 \u201cError: Invariant Violation: Element type is invalid\u201d \u7684\u932f\u8aa4\u6642\uff0c\u8acb\u4ed4\u7d30\u6aa2\u67e5\u5143\u7d20\u7684\u5b9a\u7fa9\u548c\u5c0e\u5165\u3002\u53ea\u8981\u78ba\u4fdd\u4f7f\u7528\u7684\u5143\u7d20\u6b63\u78ba\uff0c\u60a8\u5c31\u80fd\u8f15\u9b06\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u8b93\u60a8\u7684 React.js \u61c9\u7528\u7a0b\u5e8f\u9806\u5229\u904b\u884c\uff01<\/p>\n

\u4f7f\u7528\u9019\u4e9b\u6280\u5de7\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u6709\u6548\u5730\u958b\u767c React.js \u61c9\u7528\uff0c\u4e26\u907f\u514d\u5e38\u898b\u7684\u932f\u8aa4\u3002\u5e0c\u671b\u9019\u7bc7\u6587\u7ae0\u80fd\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528 React.js\uff01
\n—<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6458\u8981\uff1aReact.js\u662f\u4e00\u500b\u975e\u5e38\u6d41\u884c\u7684JavaScript\u6846\u67b6\uff0c\u4f46\u662f\u5b83\u4e5f\u6703\u51fa\u73fe\u4e00\u4e9b\u932f\u8aa4\uff0c\u5176\u4e2d\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\u662f\u300cError:InvariantViolation:Elementtypeisinvalid\u300d\uff0c\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[184,183],"tags":[182,181],"class_list":["post-4752","post","type-post","status-publish","format-standard","hentry","category-react","category-react-js","tag-react","tag-react-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1eE","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=4752"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4752\/revisions"}],"predecessor-version":[{"id":4753,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4752\/revisions\/4753"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}