{"id":4684,"date":"2023-01-04T17:34:06","date_gmt":"2023-01-04T09:34:06","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4684"},"modified":"2023-01-04T17:34:06","modified_gmt":"2023-01-04T09:34:06","slug":"%e8%a7%a3%e6%b1%bareact-js%e4%b8%ad%e3%80%8celementtypeisinvalid%e3%80%8d%e7%9a%84%e9%8c%af%e8%aa%a4","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e8%a7%a3%e6%b1%bareact-js%e4%b8%ad%e3%80%8celementtypeisinvalid%e3%80%8d%e7%9a%84%e9%8c%af%e8%aa%a4\/","title":{"rendered":"\u89e3\u6c7aReact.js\u4e2d\u300cElementtypeisinvalid\u300d\u7684\u932f\u8aa4"},"content":{"rendered":"

<\/p>\n

\u89e3\u6c7a React.js “Error: Element type is invalid: expected a string (for built-in components) or a class\/function (for composite components) but got: undefined” \u932f\u8aa4<\/h1>\n

React.js \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5feb\u901f\u69cb\u5efa\u529f\u80fd\u5f37\u5927\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u7136\u800c\uff0c\u5728\u4f7f\u7528 React.js \u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\uff1a\u201cError: Element type is invalid: expected a string (for built-in components) or a class\/function (for composite components) but got: undefined\u201d\u3002\u672c\u6587\u5c07\u89e3\u91cb\u5982\u4f55\u89e3\u6c7a\u6b64\u932f\u8aa4\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u9019\u500b\u932f\u8aa4\uff1f<\/h2>\n

\u9019\u500b\u932f\u8aa4\u8868\u660e React.js \u7121\u6cd5\u8b58\u5225\u60a8\u6b63\u5728\u4f7f\u7528\u7684\u5143\u7d20\u985e\u578b\u3002\u5b83\u53ef\u80fd\u662f\u7531\u65bc\u60a8\u5fd8\u8a18\u5c07\u7d44\u4ef6\u5f9e\u5b9a\u7fa9\u5b83\u7684\u6587\u4ef6\u4e2d\u5c0e\u51fa\uff0c\u6216\u8005\u60a8\u53ef\u80fd\u6df7\u6dc6\u4e86\u9ed8\u8a8d\u548c\u547d\u540d\u5c0e\u5165\u3002<\/p>\n

\u5982\u4f55\u89e3\u6c7a\u6b64\u932f\u8aa4\uff1f<\/h2>\n

\u89e3\u6c7a\u6b64\u932f\u8aa4\u7684\u6700\u7c21\u55ae\u65b9\u6cd5\u662f\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u5c0e\u51fa\u7d44\u4ef6\uff0c\u4e26\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u5c0e\u5165\u5b83\u5011\u3002<\/p>\n

\u5c0e\u51fa\u7d44\u4ef6<\/h3>\n

\u5982\u679c\u60a8\u5fd8\u8a18\u5c07\u7d44\u4ef6\u5f9e\u5b9a\u7fa9\u5b83\u7684\u6587\u4ef6\u4e2d\u5c0e\u51fa\uff0c\u5247\u53ef\u80fd\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002\u8981\u5c0e\u51fa\u7d44\u4ef6\uff0c\u8acb\u5728\u6587\u4ef6\u7684\u672b\u5c3e\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n

\nexport default MyComponent;\n<\/pre>\n
\u8acb\u6ce8\u610f\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u540d\u7a31\u4f86\u5c0e\u51fa\u7d44\u4ef6\uff0c\u4f46\u662f\u60a8\u5c07\u5728\u5c0e\u5165\u7d44\u4ef6\u6642\u4f7f\u7528\u76f8\u540c\u7684\u540d\u7a31\u3002<\/p>\n
\u5c0e\u5165\u7d44\u4ef6<\/h3>\n
\u5982\u679c\u60a8\u6df7\u6dc6\u4e86\u9ed8\u8a8d\u548c\u547d\u540d\u5c0e\u5165\uff0c\u5247\u53ef\u80fd\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002\u8981\u5c0e\u5165\u7d44\u4ef6\uff0c\u8acb\u5728\u6587\u4ef6\u7684\u958b\u982d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n
\nimport MyComponent from '.\/MyComponent';\n<\/pre>\n
\u8acb\u6ce8\u610f\uff0c\u60a8\u5fc5\u9808\u4f7f\u7528\u8207\u5c0e\u51fa\u7d44\u4ef6\u6642\u76f8\u540c\u7684\u540d\u7a31\u4f86\u5c0e\u5165\u7d44\u4ef6\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u89e3\u91cb\u4e86 React.js \u4e2d\u5e38\u898b\u7684\u201cError: Element type is invalid: expected a string (for built-in components) or a class\/function (for composite components) but got: undefined\u201d\u932f\u8aa4\uff0c\u4ee5\u53ca\u5982\u4f55\u89e3\u6c7a\u6b64\u932f\u8aa4\u7684\u65b9\u6cd5\u3002\u9996\u5148\uff0c\u8acb\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u5c0e\u51fa\u7d44\u4ef6\uff0c\u4e26\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u5c0e\u5165\u5b83\u5011\u3002\u5982\u679c\u60a8\u4ecd\u7136\u9047\u5230\u554f\u984c\uff0c\u8acb\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u4f7f\u7528\u9ed8\u8a8d\u548c\u547d\u540d\u5c0e\u5165\u3002<\/p>\n
<\/p>\n
\u5982\u679c\u60a8\u4ecd\u7136\u9047\u5230\u554f\u984c\uff0c\u8acb\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u4f7f\u7528\u9ed8\u8a8d\u548c\u547d\u540d\u5c0e\u5165\u3002\u6b64\u5916\uff0c\u60a8\u53ef\u4ee5\u5617\u8a66\u6aa2\u67e5\u60a8\u7684\u4ee3\u78bc\u4ee5\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u5b9a\u7fa9\u4e86\u7d44\u4ef6\uff0c\u4e26\u78ba\u4fdd\u60a8\u6b63\u78ba\u5730\u5c0e\u5165\u4e86\u5b83\u5011\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981\uff1aReact.js\u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684JavaScript\u5eab\uff0c\u4f46\u662f\u5728\u4f7f\u7528\u6642\u53ef\u80fd\u6703\u51fa\u73fe\u300cElementtypeisinvalid\u300d\u7684\u932f\u8aa4\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-4684","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\/pcFK27-1dy","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4684","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=4684"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4684\/revisions"}],"predecessor-version":[{"id":4685,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4684\/revisions\/4685"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}